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Product Catalog Architectural & Industrial Grating Solutions . OHIO GRATINGS, INC

Light Duty Steel Grating & Aluminum Grating

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Page 1: Light Duty Steel Grating & Aluminum Grating

Product CatalogArchitectural & Industrial Grating Solutions

.OHIO GRATINGS, INC

Page 2: Light Duty Steel Grating & Aluminum Grating

Welded carbon heavy duty steel grating is the most popular choice where high strength is the primary grating requirement. Another option that meets

ADA standards is Wheels n’ Heels®...

The main bars are slotted and assembled with cross bars which are welded with one fillet weld at every joint. Stainless steel can also be provided for those high corrosive applications. This product meets the demanding vehicle loading requirements

of AASHTO and is geared to handle heavy rolling loads. Slip resistant surfaces are available.

The typical markets for heavy duty steel grating include: ramps, docks, industrial flooring, industrial cover trenches, airfield ramps & trenches, airplane landing mats, machinery support trenches, bridge decking, bridge sidewalks, bridge trenches and many more applications.

Ohio Gratings offers a wide variety of light duty steel grating styles including electro forge welded,

dove tail pressure locked, riveted and swaged...

Electro forge welded grating is the more traditional industrial product while dove tail pressure locked, riveted and swaged offer smoother lines and a more pleasing appearance than the typical welded grating. These products appeal to the architectural market and

offer a different look that can be used not only for industrial applications but also commercial applications where a higher profile product might be desired. The dove tail and swaged products are also part of our Grater Access® line of products conforming to ADA standards.

INDUSTRIALG R A T I N G S O L U T I O N S

Aluminum plank is a very versatile product. It is available unpunched or in a variety of punch patterns. Slip resistant surfaces are also available. Aluminum plank is ideal for multiple industrial applications, everything from wastewater treatment plants to ADA compliant walkways (shown right) and platforms.

Aluminum Plank

Light Duty Steel Grating

Heavy Duty Steel Grating

Grosse Ile Bridge, MI - Aluminum Plank Walkway

Grosse Ile Bridge in Michigan - Heavy Duty Riveted

2 www.ohiogratings.com

Page 3: Light Duty Steel Grating & Aluminum Grating

Since 1970, our motto has allowed us to expand

successfully over the years. OGi began as a light

duty steel grating fabricator and expanded into the

manufacturing of heavy duty welded steel and stainless

steel grating. That early success led to other expansions

including the manufacturing of aluminum swaged

and dovetail bar grating. A few years later we added

aluminum plank to our line of flooring products and then

finally fiberglass to round out our product offerings.

OGi has rallied around one key principle over the years

...“Make it Right & Ship When Promised”

THE OHIO GRATINGS STORY

Our special support team can help you meet all your unique design requirements, quickly and professionally...

Detailing Support - Working from customer supplied drawings, our detailing group provides professional detailed shop drawings to insure a successful grating project.

Value Engineering - Our on-staff engineers & detailers check & double check all the calculations to make sure the grating for your project meets or exceeds your structural expectations.

Custom Fabrication - All types of custom fabrication are required on industrial projects. OGi has built grating panels and fabricated these projects for well over 25 years. Typical fabrication consists of straight cut, straight band, circular cut, circular band, end band, toe plate attachment and adding checker plate to the top of the grating.

Design & Custom Layout - Our sales and detailing department can help with the grating design and layout to optimize and value engineer the grating on any type of project. We provide solutions, not just grating. Call today to let us help with your next opportunity.

Our expansions in South Carolina, Utah and Texas demonstrate our commitment to service...All three facilities are strategically located to help us reach beyond the midwest and provide

faster service to all of our current and future customers throughout the U.S.

All of our products are manufactured in the United States. Ridgeland, SC

inteRState gRatingS, Ut

OGi HOme Office in cantOn, OH

This experience has led us into other markets in

addition to the traditional industrial flooring market.

OGi now has the ability to provide a myriad of

aluminum and steel architectural products to the

marketplace. Our manufacturing capabilities and

engineering know-how allow us to work with owners,

suppliers, architectural and engineering firms.

HoUSton, tX

---------------------------------------------------

TOLL FREE: 1-800-321-9800 3

Page 4: Light Duty Steel Grating & Aluminum Grating

4 www.OhiOgRaTings.cOm

GENERAL INFORMATION Industrial Grating Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ohio Gratings Story . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ALUMINUM GRATING Aluminum Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Aluminum Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Aluminum Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7SG Series - Aluminum Rectangular Bar . . . . . . . . . . . . . . . . . . . . . . . . . 8 SGI Series - Aluminum I-Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SGF Series - Aluminum Flush Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ADT Series - Aluminum Dove Tail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 19-Space Aluminum Profiles & Load Tables . . . . . . . . . . . . . . . . . . 12-13 15-Space Aluminum Profiles & Load Tables . . . . . . . . . . . . . . . . . . 14-15 11-Space Aluminum Profiles & Load Tables . . . . . . . . . . . . . . . . . . 16-17 7-Space Aluminum Profiles & Load Tables . . . . . . . . . . . . . . . . . . . 18-19SGLi Series - Aluminum LiteBar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 19 & 15-Space Aluminum LiteBar Load Tables . . . . . . . . . . . . . . . . . . . 21 11 & 7-Space Aluminum LiteBar Load Tables . . . . . . . . . . . . . . . . . . . . 22AR Series - Aluminum Riveted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 18-Space Aluminum Riveted Profiles & Load Tables . . . . . . . . . . . . . . 24 12-Space Aluminum Riveted Profiles & Load Tables . . . . . . . . . . . . . . 25Aluminum Plank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27 Aluminum Plank Punch Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28 Aluminum Plank Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Aluminum Plank Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29 Aluminum Plank F Treads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Aluminum Plank Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Aluminum Grating Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-33

STAIR TREADS Stair Tread Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Aluminum & Steel Stair Tread Details . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Aluminum Stair Tread Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . 36 Steel Stair Tread Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . 37

LIGHT DUTY STEEL GRATING Light Duty Steel Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Light Duty Steel Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Light Duty Steel Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40W Series - Light Duty Welded Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 DT Series - Steel Dove Tail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42SGCS Series - Swaged Carbon Steel . . . . . . . . . . . . . . . . . . . . . . . . . . 43 19-Space Light Duty W, DT & SGCS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-45 15-Space Light Duty W, DT & SGCS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-47 11-Space Light Duty W, DT & SGCS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-49 7-Space Light Duty W, DT & SGCS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-51R Series - Light Duty Riveted Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5218-Space Light Duty R Series Profiles & Load Tables . . . . . . . . . . . . . 5312-Space Light Duty R Series Profiles & Load Tables . . . . . . . . . . . . . 54Light Duty MBG PressLock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 MBG PressLock Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Fasteners & Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

MBG PressLock Applications & Load Tables . . . . . . . . . . . . . . . . . 59-60

STAINLESS STEEL SGSS Series - Swaged Stainless Steel . . . . . . . . . . . . . . . . . . . . . . . . 61 19-Space Stainless Steel SGSS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 15-Space Stainless Steel SGSS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 11-Space Stainless Steel SGSS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 7-Space Stainless Steel SGSS Series Profiles & Load Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

HEAVY DUTY STEEL GRATING Heavy Duty Steel Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Heavy Duty Steel Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Heavy Duty Steel Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68W Series - Heavy Duty Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 38-Space Heavy Duty W Series Profiles & Load Tables . . . . . . . . 70-71 30-Space Heavy Duty W Series Profiles & Load Tables . . . . . . . . 72-73 22-Space Heavy Duty W Series Profiles & Load Tables . . . . . . . . 74-75 19-Space Heavy Duty W Series Profiles & Load Tables . . . . . . . . 76-77 15-Space Heavy Duty W Series Profiles & Load Tables . . . . . . . . 78-79Steel Grating Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80Wheels n' Heels Short & Long Span Heavy Duty Steel . . . . . . . . . . 81 8-Space Wheels n' Heels Short Span Profiles & Load Tables . . . . . . . 82 12-Space Wheels n' Heels Short Span Profiles & Load Tables . . . . . . 83 15-Space Wheels n' Heels Long Span Profiles & Load Tables . . . . . . 84 23-Space Wheels n' Heels Long Span Profiles & Load Tables . . . . . . 85Wheels n' Heels Metro Heavy Duty Steel . . . . . . . . . . . . . . . . . . . . . . 86 28-WH-4 Wheels n' Heels Metro Profiles & Load Tables . . . . . . . . . . . 87 33-WH-4 Wheels n' Heels Metro Profiles & Load Tables . . . . . . . . . . . 88 42-WH-4 Wheels n' Heels Metro Profiles & Load Tables . . . . . . . . . . . 89 44-WH-4 Wheels n' Heels Metro Profiles & Load Tables . . . . . . . . . . . 90Wheels n' Heels InVent Heavy Duty Steel . . . . . . . . . . . . . . . . . . . . . . 91 64-7-WH-63 1/8" Wheels n' Heels InVent Profiles & Load Tables . . . 92 64-7-WH-63 3/16" Wheels n' Heels InVent Profiles & Load Tables . . 93 64-10-WH-60 1/8" Wheels n' Heels InVent Profiles & Load Tables . . . 94 64-11-WH-66 3/16" Wheels n' Heels InVent Profiles & Load Tables . . 95R Series - Heavy Duty Rivered Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 37-Space Heavy Duty R Series Profiles & Load Tables . . . . . . . . . . . . 97

FABRICATION Anchoring Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98 Standard Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99 Specification Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 ADA Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Nomenclature & Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 Pressure Locked Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103 Custom Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104-106 Standard Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 Grating Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108-109 Welding Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110-111

RESOURCES Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112-113 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Architectural Metal Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

TABLE OF CONTENTS

Page 5: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 5

Aluminum is the “Lightweight Champion”

• Aluminum is Non-Toxic

• Aluminum is Light Weight

• Aluminum is Durable

• Aluminum is our Most Abundant Metallic Element

• Aluminum has Excellent Corrosion Resistance

• Aluminum is Resilient

Aluminum Provides a Unique Combination of Properties...which makes it one of the most

versatile engineering and construction

materials available today!!

ALUMINUM FEATURES & BENEFITS

• Aluminum has High Strength-to-Weight Ratio

•Aluminum can be Customized in the Field

•Aluminum can be Easily Recycled

• Aluminum is Naturally Attractive

• Aluminum is Versatile

As a natural resource, aluminum is our most abundant metallic element. Its light weight mass (about a third the weight of copper or steel), unmatched strength-to-weight ratio and excellent corrosion resistance under the majority of service conditions makes it an excellent material for the manufacturing of bar grating.

Aluminum can be recycled and as a result, makes it an environmentally friendly material unlike some other grating material. Aluminum is durable and will offer years of service without showing wear or decay. It is also non-toxic so it can be easily cleaned and does not absorb bacteria sustaining particles. As a result it is a good candidate for food processing facilities. The material is also resilient; it can deflect under loads and then spring back.

All these attributes make aluminum grating an ideal solution for many special grating applications such as: sewage and waste water treatment plants, off-shore drilling rigs, the chemical processing industry, the paper mill industry and marine superstructure applications. Because of its natural attractiveness, aluminum grating is also used in many architectural and commercial applications including sun screens, ceiling tiles, vent grilles, fencing, building facades, fountains, nature and wildlife walkways, and entranceways.

Reasons Why:

Page 6: Light Duty Steel Grating & Aluminum Grating

ALUMINUM PRODUCTS

6 www.OhiOgRaTings.cOm

Aluminum Riveted

Aluminum Plank

A type of pressure locked grating in which the cross bars are in the same plane relative to the top surface of the grating. Bearing bar sizes range from 1" x 1⁄8" through 2-1⁄2" x 3⁄16" in 1⁄4" increments. Bearing bar spacing of 1-3⁄16", 15⁄16", 11⁄16" and 7⁄16" c.c. and cross bar spacing of 4" or 2" are available. Where skid resistance is desired, a serrated surface can be provided. Aluminum Flush Top is available in spacings which provide a 1⁄4" or 1⁄2" opening in conformance with provisions of the ADA for grating products.

A type of pressure locked grating where bearing bars and cross bars are precision slotted, assembled in egg-crate fashion, and hydraulically pressed together to form a panel grid. Bearing bars range from 1" x 1/8" through 2-1/2" x 3/16" in 1/4" increments. Grating spacings for Aluminum Dove Tail include the standards, as well as the ADA (July 1991) compliant spacings. Many engineers prefer the bi-directional, rectilinear look and feel of Aluminum Dove Tail grating.

A type of aluminum grating which combines straight bearing bars and bent connecting bars riveted together at their contact points. Riveted grating, although being the oldest style of industrial footwalk, is still the choice of many engineers due to its reliability and durability. All popular sizes and spacings of riveted grating are manufactured by Ohio Gratings with an emphasis on quality and service.

A type of aluminum grating which is available in 6" wide sections, and either plain sided or interlocking. Plank can be provided in sections up to 26' 0" in length, or fabricated per plans and specs. Plank grating is available unpunched as an economical and structurally superior substitute for aluminum checkerplate, or with a variety of punch/patterns.

Aluminum Flush Top

Aluminum Dove Tail

A type of pressure locked grating made by permanently attaching cross bars to bearing bars through a pressure applied swaging process. Bearing bars are either rectangular or “I” shaped and range in size from 1" through 2-1/2". Both Rectangular Bar and I-Bar are offered in 1-3/16" and 15/16" spacings, as well as ADA (July 1991) compliant spacings. Cross bars are available on 4" and 2" centers. A serrated surface (rectangular bar) or striated surface (I-Bar) is available for skid resistance.

Aluminum Rectangular, I-Bar &SG Series, SGI Series & SGLi Series

SGF Series

ADT Series

AR Series

Page 7: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 7

U = Uniform Load - lbs/ft2

C = Concentrated Load - lbs/ft of grating width

S = Section Modulus - in3/ft of grating width

I = Moment of Inertia - in4/ft of grating width

L = Simple Clear Span - feet

D = Deflection - inches

E = Modulus of Elasticity (10,000,000 psi)

F = Allowable Bending Stress (12,000 psi)

M = Bending Moment

Design ServiceAvailable at no charge to the specifying architect/ engineer or fabricator, is access to a computer program which provides uniform load and deflection (actual or fraction of span) analysis of grating products. Just call, write or fax your design criteria – loading, span, allowable deflection, or grating size desired – and we will provide you with the information you require.

Step 1. Determine M:

Step 2. Determine U or C:

Step 3. Check D*:

SPANLOAD

DEFLECTION FT. OF

WIDTH

SPANLOAD

DEFLECTION FT. OF

WIDTH

Information of a technical nature contained herein is intended only for evaluation by technically skilled persons, with any use thereof to be at their independent discretion and risk. Such information is reliable when evaluated in the proper manner under conditions as described herein. Ohio Gratings, Inc. shall have no responsibility or liability for results obtained or damages resulting from improper evaluation or use.

*Deflection should be limited to 1/4" under 100# uniform load to afford pedestrian comfort.

M =

C =

D =

FS12

4ML

C (L x 12)3

48 EI

M =

U =

D =

FS12

8ML2

5UL (L x 12)3

384 EI

ALUMINUM DESIGN CRITERIA

Aluminum Grating is best suited for use in conjunction with pedestrian traffic, and for verylight, rubber pneumatic tired rolling traffic (carts, dollies and hand trucks). For other rolling loads

(forklifts, cars, trucks, etc.) see the Heavy Duty Steel Grating section, page 67.

Uniform Load Concentrated Load

The tables of safe loads which follow have been computed using the following design parameters:

See note below

Page 8: Light Duty Steel Grating & Aluminum Grating

SG SERIES

ALUMINUM RECTANGULAR BAR

The most widely used aluminum

pressure locked grating is the rectangular

bar SG series. The square cross bars are assembled

through punched diamond shaped holes in rectangular

bearing bars and are permanently locked into place by a

swaging process.

It provides clean crisp lines using recessed cross bar and

eliminates the need for any type of welding to form the panels.

By using the most modern technology available, swaged bar

grating allows for a variety of spacings including those that

conform to the “Americans with Disabilities Act”. Because of

its aesthetic appeal and the ability to meet tight tolerances, this

product is often used for architectural applications. Slip resistant

surfaces are available.

8 www.OhiOgRaTings.cOm

GRATING PROFILES AVAILABLE...SG SERIES Aluminum Rectangular Bar

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16" 7-SG-4

19-SG-4

15-SG-4

11-SG-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

See load tables begining on page 12.

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-SG-2, 15-SG-2, 11-SG-2 and 7-SG-2

Serrated surface also available.

*8 Space available upon request.

Page 9: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 9

SGI SERIES

ALUMINUM I-BAR

The I-Bar SGI Series

offers a popular and

reasonably priced alternative to

rectangular bar grating. Extruded I-Bar

sections have the same load carrying capacity with less

weight per square foot than rectangular bars.

The striated top and bottom flanges provide a “built-in” skid

resistance feature without the added cost of serration.

Our closest mesh

GRATING PROFILES AVAILABLE...SGI SERIES Aluminum I-BarAll profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-SGI-2, 15-SGI-2, 11-SGI-2 and 7-SGI-2

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16" 7-SGI-4

19-SGI-4

15-SGI-4

11-SGI-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

1/4"

End view

See load tables begining on page 12.

Page 10: Light Duty Steel Grating & Aluminum Grating

SGF SERIES

ALUMINUM FLUSH TOP

Maximum walking surface,

cosmetic appeal, economy of shop

fabrication and ease of field alteration make the

Aluminum Flush Top series the premier choice when pressure

locked aluminum grating is being specified. This series offers a

type of pressure locked grating in which the cross bars are in the

same plane relative to the top surface of the grating. For those

areas that receive a great deal of pedestrian traffic, our 1/4"

opening 7-SGF-4 close space product is available which conforms

with the provisions of the “Americans with Disabilities Act”.

Slip resistant surfaces

are available.

Serrated surface also available

GRATING PROFILES AVAILABLE...SGF SERIES Aluminum Flush TopAll profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-SGF-2, 15-SGF-2, 11-SGF-2 and 7-SGF-2

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16"7-SGF-4

19-SGF-4

15-SGF-4

11-SGF-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

10 www.OhiOgRaTings.cOm

See load tables begining on page 12.

*8 Space available upon request.

Page 11: Light Duty Steel Grating & Aluminum Grating

ADT SERIES

ALUMINUM DOVE TAIL

Traditionally designed,

Aluminum Dove Tail slot pressure

locked grating offers a smooth, clean line of

a flush top rectangular cross bar. Bearing bars and cross

bars are precision slotted, assembled in egg-crate fashion and

hydraulically pressed together to form a tightly locked, rigidly

stable panel grid. This grating is available in spacings, which

provide a 1/4" or 1/2" opening in conformance with provisions for

the “Americans with Disabilities Act” (July 1991). These products

are part of our Grater Access line and are available with cross bars

on 2" or 4" centers. This is also a popular style in the architectural

community because of the aesthetic eye appeal of

the product and the ability to maintain tighter tolerances.

Slip resistant surfaces are available.

GRATING PROFILES AVAILABLE...ADT SERIES Aluminum Dove TailAll profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-ADT-2, 15-ADT-2, 11-ADT-2 and 7-ADT-2

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16"7-ADT-4

19-ADT-4

15-ADT-4

11-ADT-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

TOLL FREE: 1-800-321-9800 11

Serrated surface also available.

*8 Space available upon request.

See load tables begining on page 12.

Page 12: Light Duty Steel Grating & Aluminum Grating

12 www.OhiOgRaTings.cOm

Widt

h Span

2" 1-3/16"

Span

4" 1-3/16"

Widt

h

Wid

th

Span

4" 1-3/16"

Wid

th Span

2" 1-3/16"

Wid

th Span

4"1/4"

1-3/16"

Wid

th Span

2"1/4"

1-3/16"

Width Span

4" 1-3/16"

Width Span

2"1-3/16"

19-SG-4 19-SG-2

ALUMINUM RECTANGULAR BAR

Bars4" cc2" cc

% Open Area*1/8"85%81%

3/16"80%77%

ALUMINUM I-BAR

4" cc2" cc

73%67%

% Open Area*

ALUMINUM FLUSH TOP

Bars4" cc2" cc

% Open Area*1/8"85%81%

3/16"80%77%

ALUMINUM DOVE TAIL

Bars4" cc2" cc

% Open Area*1/8"86%84%

3/16"81%79%

19 SPACE PROFILES

19-SGI-4 19-SGI-2

19-SGF-4 19-SGF-2

19-ADT-4 19-ADT-2

Page 13: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 13

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

1.71

2.46

2.08

3.01

2.46

3.56

4.12

4.68

5.24

5.79

Sec. PropSx*, in3

Ix*, in4

0.211

0.105

0.316

0.158

0.329

0.206

0.493

0.308

0.474

0.355

0.711

0.533

0.967

0.846

1.263

1.263

1.599

1.798

1.974

2.467

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

Clear Span

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"421

0.144421

0.115632

0.144632

0.115658

0.115658

0.092987

0.115987

0.092947

0.096947

0.07714210.09614210.07719340.08219340.06625260.07225260.05831970.06431970.05139470.05839470.046

2690.225

3370.180

4040.225

5050.180

4210.180

5260.144

6320.180

7890.144

6060.150

7580.120

9090.1501137

0.1201238

0.1291547

0.1031617

0.1132021

0.0902046

0.1002558

0.0802526

0.0903158

0.072

1870.324

2810.259

2810.324

4210.259

2920.259

4390.208

4390.259

6580.207

4210.216

6320.173

6320.216

9470.173

8600.1851289

0.1481123

0.1621684

0.1301421

0.1442132

0.1151754

0.1302632

0.104

1370.439

2410.353

2060.441

3610.353

2150.353

3760.282

3220.353

5640.282

3090.294

5410.235

4640.294

8120.235

6320.2521105

0.202825

0.2211444

0.1761044

0.1961827

0.1571289

0.1762256

0.141

1580.576

3160.461

1640.459

3290.369

2470.461

4930.368

2370.384

4740.307

3550.384

7110.307

4840.329

9670.263

6320.2881263

0.230799

0.2561599

0.205987

0.2301974

0.184

1950.583

4390.467

1870.486

4210.389

2810.487

6320.389

3820.417

8600.333

4990.3641123

0.292632

0.3241421

0.259780

0.2921754

0.233

2270.599

5680.480

3090.514

7740.412

4040.4501011

0.360512

0.4001279

0.320632

0.3601579

0.288

2560.623

7030.498

3340.544

9190.436

4230.4841163

0.387522

0.4361435

0.348

2150.741

6450.593

2810.649

8420.518

3550.5761066

0.461439

0.5191316

0.415

2390.760

7770.608

3030.677

9840.541

3740.6091215

0.487

261

0.784914

0.628322

0.70511280.565

2470.923

9870.737

Dimensions Are Out-to-Out of Bearing Bars**

**Add 1/4" for extended cross bars. Deduct 1/16"for1/8˝" bearing bars. Standard panel widths indicated in teal.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-3/8 2-9/16 3-3/4 4-15/16 6-1/8 7-5/16 8-1/2 9-11/16 10-7/8 12-1/16 13-1/4 14-7/16 15-5/8 16-13/16 18

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 19-3/16 20-3/8 21-9/16 22-3/4 23-15/16 25-1/8 26-5/16 27-1/2 28-11/16 29-7/8 31-1/16 32-1/4 33-7/16 34-5/8 35-13/16

Dimensions Are Out-to-Out of Bearing Bars**

**Bar thickness is 1/4" at top and bottom. Add 1/4" for extended cross bars. Standard panel widths indicated in teal.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Flange 1-7/16 2-5/8 3-13/16 5 6-3/16 7-3/8 8-9/16 9-3/4 10-15/16 12-1/8 13-5/16 14-1/2 15-11/16 16-7/8 18-1/16

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Flange 19-1/4 20-7/16 21-5/8 22-13/16 24 25-3/16 26-3/8 27-9/16 28-3/4 29-15/16 31-1/8 32-5/16 33-1/2 34-11/16 35-7/8

I-Bar 1.99

I-Bar 2.34

I-Bar 2.70

I-Bar 3.06

I-Bar 3.43

I-Bar 3.75

I-Bar 4.15

Panel Width Chart (in.) - 19-SG-4, 19-SG-2, 19-SGLi-4, 19-SGLi-2, 19-SGF-4, 19-SGF-2, 19-ADT-4 & 19-ADT-2

U - Safe uniform load in pounds/sq. ft.

C - Safe concentrated load in pounds/ft. grating width

D - Deflection in inches

Loads and deflections given in this table are theoretical, and are based on a unit stress of 12,000 psi.

19 SPACE LOAD TABLES

*Based on 10.105 bars/ft. of grating width. Bearing bars 1-3/16" c.c. Add .3 lbs./sq. ft. for 19-SG-2. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

Panel Width Chart (in.) - 19-SGI-4 & 19-SGI-2

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Bar Size,Inches

1 x 1/8

1 x 3/16

1-1/4 x 1/8

1-1/4 x 3/16

1-1/2 x 1/8

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

39

44

47

52

53

59

66

73

80

87

Page 14: Light Duty Steel Grating & Aluminum Grating

14 www.OhiOgRaTings.cOm

Widt

h Span

2" 15/16"

Span

4" 15/16"

Widt

h

Wid

th

Span

4" 15/16"

Wid

th

Span

2" 15/16"

Wid

th Span

4"1/4"

15/16"

Wid

th Span

2"1/4"

15/16"

Width Span

4" 15/16"

Width Span

2"15/16"

15-SG-4 15-SG-2

ALUMINUM RECTANGULAR BAR

ALUMINUM I-BAR

4" cc2" cc

68%62%

% Open Area*

ALUMINUM FLUSH TOP

ALUMINUM DOVE TAIL

15 SPACE PROFILES

15-SGI-4 15-SGI-2

15-SGF-4 15-SGF-2

15-ADT-4 15-ADT-2

4" cc2" cc

76%73%

% Open Area*

4" cc2" cc

76%73%

% Open Area*

4" cc2" cc

77%75%

% Open Area*

Page 15: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 15

15 SPACE LOAD TABLES

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

3.06

3.75

4.45

5.16

5.87

6.57

7.27

Sec. PropSx*, in3

Ix*, in4

0.400

0.200

0.625

0.391

0.900

0.675

1.225

1.072

1.600

1.600

2.025

2.278

2.500

3.125

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

800

0.144

800

0.115

1250

0.115

1250

0.092

1800

0.096

1800

0.077

2450

0.082

2450

0.066

3200

0.072

3200

0.058

4050

0.064

4050

0.051

5000

0.058

5000

0.046

512

0.225

640

0.180

800

0.180

1000

0.144

1152

0.150

1440

0.120

1568

0.129

1960

0.103

2048

0.113

2560

0.090

2592

0.100

3240

0.080

3200

0.090

4000

0.072

356

0.324

533

0.259

556

0.259

833

0.207

800

0.216

1200

0.173

1089

0.185

1633

0.148

1422

0.162

2133

0.130

1800

0.144

2700

0.115

2222

0.130

3333

0.104

261

0.441

457

0.353

408

0.353

714

0.282

588

0.294

1029

0.235

800

0.252

1400

0.202

1045

0.221

1829

0.176

1322

0.196

2314

0.157

1633

0.176

2857

0.141

200

0.576

400

0.461

313

0.462

625

0.369

450

0.384

900

0.307

613

0.329

1225

0.263

800

0.288

1600

0.230

1013

0.256

2025

0.205

1250

0.230

2500

0.184

247

0.583

556

0.467

356

0.487

800

0.389

484

0.417

1089

0.333

632

0.364

1422

0.292

800

0.324

1800

0.259

988

0.292

2222

0.233

200

0.720

500

0.576

288

0.600

720

0.480

392

0.514

980

0.411

512

0.450

1280

0.360

648

0.400

1620

0.320

800

0.360

2000

0.288

238

0.726

655

0.581

324

0.622

891

0.498

423

0.544

1164

0.436

536

0.484

1473

0.387

661

0.435

1818

0.348

272

0.740

817

0.593

356

0.649

1067

0.519

450

0.576

1350

0.461

556

0.519

1667

0.415

303

0.761

985

0.609

383

0.675

1246

0.541

473

0.608

1538

0.487

261

0.881

914

0.705

331

0.785

1157

0.627

408

0.705

1429

0.565

253

1.023

1013

0.820

313

0.923

1250

0.737

**Bar thickness is 1/4" at top and bottom. Add 1/4" for extended cross bars. Standard panel widths indicated in teal.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Flange 1-3/16 2-1/8 3-1/16 4 4-15/16 5-7/8 6-13/16 7-3/4 8-11/16 9-5/8 10-9/16 11-1/2 12-7/16 13-3/8 14-5/16

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Flange 15-1/4 16-3/16 17-1/8 18-1/16 19 19-15/16 20-7/8 21-13/16 22-3/4 23-11/16 24-5/8 25-9/16 26-1/2 27-7/16 28-3/8

No. of Bars 32 33 34 35 36 37 38 39

1/4" Flange 29-5/16 30-1/4 31-3/16 32-1/8 33-1/16 34 34-15/16 35-7/8

Dimensions Are Out-to-Out of Bearing Bars**

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in teal.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-1/8 2-1/16 3 3-15/16 4-7/8 5-13/16 6-3/4 7-11/16 8-5/8 9-9/16 10-1/2 11-7/16 12-3/8 13-5/16 14-1/4

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 15-3/16 16-1/8 17-1/16 18 18-15/16 19-7/8 20-13/16 21-3/4 22-11/16 23-5/8 24-9/16 25-1/2 26-7/16 27-3/8 28-5/16

No. of Bars 32 33 34 35 36 37 38 39

3/16" Bars 29-1/4 30-3/16 31-1/8 32-1/16 33 33-15/16 34-7/8 35-13/16

Bar Size,Inches

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

*Based on 12.8 bars/ft. of grating width. Bearing bars 15/16" c.c. Add .3 lbs./sq. ft. for 15-SG-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

Panel Width Chart (in.) - 15-SG-4, 15-SG-2, 15-SGLi-4, 15-SGLi-2, 15-SGF-4, 15-SGF-2, 15-ADT-4 & 15-ADT-2

I-Bar

3.33

3.78

4.25

4.66

5.16I-Bar

I-Bar

I-Bar

I-Bar

I-Bar

I-Bar

2.42

2.87

U - Safe uniform load in pounds/sq. ft.

C - Safe concentrated load in pounds/ft. grating width

D - Deflection in inches

Loads and deflections given in this table are theoretical, and are based on a unit stress of 12,000 psi.

Dimensions Are Out-to-Out of Bearing Bars**Panel Width Chart (in.) - 15-SGI-4 & 15-SGI-2

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

46

55

63

70

78

85

92

Page 16: Light Duty Steel Grating & Aluminum Grating

Wid

th Span

4" 11/16"

16 www.OhiOgRaTings.cOm

11-SG-4 11-SG-2

ALUMINUM RECTANGULAR BAR

ALUMINUM I-BAR

4" cc2" cc

59%55%

% Open Area*

ALUMINUM FLUSH TOP

ALUMINUM DOVE TAIL

11 SPACE PROFILES

11-SGI-4 11-SGI-2

11-SGF-4 11-SGF-2

11-ADT-4 11-ADT-2

4" cc2" cc

69%66%

% Open Area*

4" cc2" cc

69%66%

% Open Area*

4" cc2" cc

70%68%

% Open Area*

Wid

th Span

2" 11/16"

Wid

th

Span

4"11/16"

Wid

th

Span

2"11/16"

Wid

th Span

2"

1/4"

11/16"

Wid

th Span

4"

1/4"

11/16"

Wid

th

Span

4"11/16"

Wid

th

Span

2" 11/16"

Products conform to ADA specifications

Page 17: Light Duty Steel Grating & Aluminum Grating

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Flange 15/16 1-5/8 2-5/16 3 3-11/16 4-3/8 5-1/16 5-3/4 6-7/16 7-1/8 7-13/16 8-1/2 9-3/16 9-7/8 10-9/16

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Flange 11-1/4 11-15/16 12-5/8 13-5/16 14 14-11/16 15-3/8 16-1/16 16-3/4 17-7/16 18-1/8 18-13/16 19-1/2 20-3/16 20-7/8 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

1/4" Flange 21-9/16 22-1/4 22-15/16 23-5/8 24-5/16 25 25-11/16 26-3/8 27-1/16 27-3/4 28-7/16 29-1/8 29-13/16 30-1/2 31-3/16

No. of Bars 47 48 49 50 51 52 53

1/4" Flange 31-7/8 32-9/16 33-1/4 33-15/16 34-5/8 35-5/16 36

**Bar thickness is 1/4" at top and bottom. Add 1/4" for extended cross bars. Standard panel widths indicated in teal.

Dimensions Are Out-to-Out of Bearing Bars**

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 7/8 1-9/16 2-1/4 2-15/16 3-5/8 4-5/16 5 5-11/16 6-3/8 7-1/16 7-3/4 8-7/16 9-1/8 9-13/16 10-1/2

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 11-3/16 11-7/8 12-9/16 13-1/4 13-15/16 14-5/8 15-5/16 16 16-11/16 17-3/8 18-1/16 18-3/4 19-7/16 20-1/8 20-13/16 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

3/16" Bars 21-1/2 22-3/16 22-7/8 23-9/16 24-1/4 24-15/16 25-5/8 26-5/16 27 27-11/16 28-3/8 29-1/16 29-3/4 30-7/16 31-1/8

No. of Bars 47 48 49 50 51 52 53

3/16" Bars 31-13/16 32-1/2 33-3/16 33-7/8 34-9/16 35-1/4 35-15/16

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in teal.

TOLL FREE: 1-800-321-9800 17

11 SPACE LOAD TABLES

Panel Width Chart (in.) - 11-SGF-4, 11-SGF-2, 11-SGLi-4, 11-SGLi-2, 11-SG-4, 11-SG-2, 11-ADT-4 & 11-ADT-2

Panel Width Chart (in.) - 11-SGI-4 & 11-SGI-2

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

4.13

5.13

6.21

7.18

8.14

9.10

10.06

Sec. PropSx*, in3

Ix*, in4

0.545

0.273

0.852

0.533

1.227

0.920

1.670

1.462

2.182

2.182

2.761

3.107

3.409

4.261

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

Clear Span

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

1091

0.144

1091

0.115

1705

0.115

1705

0.092

2455

0.096

2455

0.077

3341

0.082

3341

0.066

4364

0.072

4364

0.058

5523

0.064

5523

0.051

6818

0.058

6818

0.046

698

0.225

873

0.180

1091

0.180

1364

0.144

1571

0.150

1964

0.120

2138

0.129

2673

0.103

2793

0.113

3491

0.090

3535

0.100

4418

0.080

4364

0.090

5455

0.072

485

0.324

727

0.259

758

0.259

1136

0.207

1091

0.216

1636

0.173

1485

0.185

2227

0.148

1939

0.162

2909

0.130

2455

0.144

3682

0.115

3030

0.130

4546

0.104

356

0.441

623

0.353

557

0.353

974

0.282

802

0.294

1403

0.235

1091

0.252

1909

0.202

1425

0.221

2494

0.176

1803

0.196

3156

0.157

2226

0.176

3896

0.141

273

0.577

545

0.460

426

0.461

852

0.369

614

0.384

1227

0.307

835

0.329

1670

0.263

1091

0.288

2182

0.230

1381

0.256

2761

0.205

1705

0.230

3409

0.184

215

0.727

485

0.583

337

0.584

758

0.467

485

0.486

1091

0.389

660

0.417

1485

0.333

862

0.365

1939

0.292

1091

0.324

2455

0.259

1347

0.292

3030

0.233

273

0.721

682

0.576

393

0.600

982

0.480

535

0.515

1336

0.411

698

0.450

1746

0.360

884

0.400

2209

0.320

1091

0.360

2727

0.288

325

0.727

893

0.581

442

0.623

1215

0.498

577

0.544

1587

0.436

730

0.484

2008

0.387

902

0.436

2479

0.348

273

0.865

818

0.691

371

0.740

1114

0.593

485

0.648

1455

0.519

614

0.576

1841

0.461

758

0.519

2273

0.415

316

0.868

1028

0.695

413

0.760

1343

0.609

523

0.676

1699

0.541

646

0.609

2098

0.487

356

0.881

1247

0.706

451

0.784

1578

0.627

557

0.706

1948

0.564

273

1.153

1091

0.922

345

1.023

1381

0.819

426

0.921

1705

0.737

I-Bar

I-Bar

3.18

3.79

I-Bar 4.42

I-Bar 5.03

I-Bar 5.67

I-Bar 6.23

I-Bar 6.91

U - Safe uniform load in pounds/sq. ft.

C - Safe concentrated load in pounds/ft. grating width

D - Deflection in inches

Loads and deflectionsgiven in this table are theoretical, and are based on a unit stress of 12,000 psi.

*Based on 17.455 bars/ft. of grating width. Bearing bars 11/16" c.c. Add .4 lbs./sq. ft. for 11-SGF-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

BarSize,

Inches

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

50

59

68

76

84

92

100

Page 18: Light Duty Steel Grating & Aluminum Grating

Wid

th Span

4" 7/16"

Widt

h Span

2" 7/16"

18 www.OhiOgRaTings.cOm

ALUMINUM RECTANGULAR BAR

ALUMINUM I-BAR

7 SPACE PROFILES

7-ADT-4 7-ADT-2

4" cc2" cc

54%51%

% Open Area*

4" cc2" cc

55%53%

% Open Area*

Width Span

4"7/16"

Width Span

2"7/16"

Wid

th

Span

4" 1/4"

7/16"

Widt

h Span

2" 1/4"

7/16"

4" cc2" cc

39%36%

% Open Area*

ALUMINUM FLUSH TOP

ALUMINUM DOVE TAIL

7-SGI-4 7-SGI-2

7-SGF-4 7-SGF-24" cc2" cc

54%51%

% Open Area*

Wid

th

Span

4" 7/16"

Width Span

2" 7/16"

Products conform to ADA specifications

7-SG-4 7-SG-2

Page 19: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 19

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in teal.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 5/8 1-1/16 1-1/2 1-15/16 2-3/8 2-13/16 3-1/4 3-11/16 4-1/8 4-9/16 5 5-7/16 5-7/8 6-5/16 6-3/4 No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 3/16" Bars 7-3/16 7-5/8 8-1/16 8-1/2 8-15/16 9-3/8 9-13/16 10-1/4 10-11/16 11-1/8 11-9/16 12 12-7/16 12-7/8 13-5/16 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 3/16" Bars 13-3/4 14-3/16 14-5/8 15-1/16 15-1/2 15-15/16 16-3/8 16-13/16 17-1/4 17-11/16 18-1/8 18-9/16 19 19-7/16 19-7/8 No. of Bars 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 3/16" Bars 20-5/16 20-3/4 21-3/16 21-5/8 22-1/16 22-1/2 22-15/16 23-3/8 23-13/16 24-1/4 24-11/16 25-1/8 25-9/16 26 26-7/16 No. of Bars 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 3/16" Bars 26-7/8 27-5/16 27-3/4 28-3/16 28-5/8 29-1/16 29-1/2 29-15/16 30-3/8 30-13/16 31-1/4 31-11/16 32-1/8 32-9/16 33 No. of Bars 77 78 79 80 81 82 83 3/16" Bars 33-7/16 33-7/8 34-5/16 34-3/4 35-3/16 35-5/8 36-1/16

**Bar thickness is 1/4" at top and bottom. Add 1/4" for extended cross bars. Standard panel widths indicated in teal.

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

6.30

7.78

9.28

10.80

12.32

13.83

15.33

Sec. PropSx*, in3

Ix*, in4

0.857

0.429

1.339

0.837

1.929

1.446

2.625

2.297

3.429

3.429

4.339

4.882

5.357

6.697

UDCDUDCDUDCDUDCDUDCDUDCDUDCD

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

1714

0.144

1714

0.115

2679

0.115

2679

0.092

3857

0.096

3857

0.077

5250

0.082

5250

0.066

6857

0.072

6857

0.058

8679

0.064

8679

0.051

10714

0.058

10714

0.046

1097

0.225

1371

0.180

1714

0.180

2143

0.144

2469

0.150

3086

0.120

3360

0.129

4200

0.103

4389

0.113

5486

0.090

5554

0.100

6943

0.080

6857

0.090

8572

0.072

762

0.324

1143

0.259

1190

0.259

1786

0.207

1714

0.216

2571

0.173

2333

0.185

3500

0.148

3048

0.162

4572

0.130

3857

0.144

5786

0.115

4762

0.130

7143

0.104

560

0.441

980

0.353

875

0.353

1531

0.282

1259

0.294

2204

0.235

1714

0.252

3000

0.202

2239

0.220

3918

0.176

2834

0.196

4959

0.157

3499

0.176

6123

0.141

429

0.577

857

0.461

670

0.461

1339

0.369

964

0.384

1929

0.307

1313

0.329

2625

0.263

1714

0.288

3429

0.230

2170

0.256

4339

0.205

2679

0.230

5357

0.184

339

0.730

762

0.583

529

0.583

1190

0.466

762

0.486

1714

0.389

1037

0.417

2333

0.333

1355

0.365

3048

0.292

1714

0.324

3857

0.259

2116

0.292

4762

0.233

274

0.899

686

0.720

429

0.721

1071

0.576

617

0.600

1543

0.480

840

0.514

2100

0.411

1097

0.450

2743

0.360

1389

0.400

3471

0.320

1714

0.360

4286

0.288

354

0.871

974

0.697

510

0.726

1403

0.581

694

0.622

1909

0.498

907

0.545

2494

0.436

1148

0.484

3156

0.387

1417

0.436

3896

0.348

298

1.038

893

0.830

429

0.865

1286

0.691

583

0.740

1750

0.592

762

0.648

2286

0.518

964

0.576

2893

0.461

1190

0.518

3571

0.415

365

1.014

1187

0.811

497

0.869

1615

0.695

649

0.760

2110

0.608

822

0.676

2670

0.541

1014

0.608

3297

0.487

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

Loads and deflections given in this table are theoretical, and are based on a unit stress of 12,000 psi.

429

1.009

1500

0.806

560

0.882

1959

0.706

708

0.783

2480

0.627

875

0.706

3061

0.564

328

1.316

1313

1.054

429

1.153

1714

0.921

542

1.023

2170

0.819

670

0.922

2679

0.737

I-Bar

I-Bar

4.79

5.75

I-Bar 6.74

I-Bar 7.70

I-Bar 8.71

I-Bar 9.59

I-Bar 10.66

7 SPACE LOAD TABLES

*Based on 27.429 bars/ft. of grating width. Bearing bars 7/16" c.c. Add .3 lbs./sq. ft. for 7-SG-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

Panel Width Chart (in.) - 7-SG-4, 7-SG-2, 7-SGLi-4, 7-SGLi-2, 7-SGF-4, 7-SGF-2, 7-ADT-4 & 7-ADT-2 Dimensions Are Out-to-Out of Bearing Bars**

Panel Width Chart (in.) - 7-SGI-4 & 7-SGI-2 Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1/4" Flange 11/16 1-1/8 1-9/16 2 2-7/16 2-7/8 3-5/16 3-3/4 4-3/16 4-5/8 5-1/16 5-1/2 5-15/16 6-3/8 6-13/16 No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1/4" Flange 7-1/4 7-11/16 8-1/8 8-9/16 9 9-7/16 9-7/8 10-5/16 10-3/4 11-3/16 11-5/8 12-1/16 12-1/2 12-15/16 13-3/8 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 1/4" Flange 13-13/16 14-1/4 14-11/16 15-1/8 15-9/16 16 16-7/16 16-7/8 17-5/16 17-3/4 18-3/16 18-5/8 19-1/16 19-1/2 19-15/16 No. of Bars 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 1/4" Flange 20-3/8 20-13/16 21-1/4 21-11/16 22-1/8 22-9/16 23 23-7/16 23-7/8 24-5/16 24-3/4 25-3/16 25-5/8 26-1/16 26-1/2 No. of Bars 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 1/4" Flange 26-15/16 27-3/8 27-13/16 28-1/4 28-11/16 29-1/8 29-9/16 30 30-7/16 30-7/8 31-5/16 31-3/4 32-3/16 32-5/8 33-1/16 No. of Bars 77 78 79 80 81 82 83 1/4" Flange 33-1/2 33-15/16 34-3/8 34-13/16 35-1/4 35-11/16 36-1/8

Bar Size,Inches

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

66

56

76

85

94

103

111

Page 20: Light Duty Steel Grating & Aluminum Grating

SGLi SERIES

ALUMINUM

GRATING PROFILES AVAILABLE...

SGLi SERIES Aluminum

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16"7-SGLi-4

19-SGLi-4

15-SGLi-4

11-SGLi-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-SGLi-2, 15-SGLi-2, 11-SGLi-2 and 7-SGLi-2

20 www.OhiOgRaTings.cOm

End view

BENEFITS:

• 20%Lighter

• ReducesFreightCost

• MeetsADARequirements

• MoreEconomical

• MeetsNAAMM

Standards

• EasyFieldInstallation

APPLICATIONS:

• Walkways

• Entranceways

• Vents/AirGrilles

• CeilingTiles

• SunScreens

• MaterialScreens

• SecurityScreens

3/16"

19-SGLi-4

7-SGLi-4

Page 21: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 21

19 & 15 SPACE LOAD TABLES

LOAD TABLE for 19-SGLi-4 & 19-SGLi-2

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

Sec. PropSx*, in3

Ix*, in4

ClearSpan

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"Bar Size,Inches

3/4"

1"

1-1/4"

1-1/2"

2"

2-1/2"

U D CD U D C D U D C D U D C DU D C D U D C D

33

40

48

54

67

79

1.36

1.66

1.97

2.27

2.95

3.59

.119

.050

.211

.112

.339

.222

.464

.363

.845

.871

1.322

1.694

952.043476.0341688.034844.0272712.0271356.0223712.0231856.0186760.0173380.014

10577.0145288.011

423.096317.077750.076563.0611205.062904.0491650.0521237.0413004.0392253.0314701.0323526.025

238.171238.137422.136422.109678.110678.088928.092928.0741690.0701690.0562644.0562644.045

152.268190.214270.212338.170434.172542.137594.144742.1151082.1091352.0871692.0882115.070

106.386159.308188.305281.244301.247452.198412.207619.166751.1571127.1261175.1261763.101

78.525136.420138.415241.332221.337387.269303.282530.225552.214966.171863.1721511.138

60.685119.548106.543211.434170.440339.351232.368464.295423.279845.224661.2251322.180

83.687188.549134.557301.444183.466412.373334.354751.283522.2851175.228

108.687271.549148.575371.460270.437676.349423.3511058.281

123.696337.557223.528615.423350.425962.340

188.629563.503294.506881.405

160.738520.590250.594814.475

138.856483.685216.689755.551

1061.118423

0.894165

0.899661

0.719

% Open Area4" cc2" cc

80%77%

See Panel Width Charts on page 13

LOAD TABLE for 15-SGLi-4 & 15-SGLi-2

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

Sec. PropSx*, in3

Ix*, in4

ClearSpan

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"Bar Size,Inches

3/4"

1"

1-1/4"

1-1/2"

2”

2-1/2"

U D CD U D C D U D C D U D C DU D C D U D C D

35

43

50

57

71

84

1.62

2.00

2.38

2.77

3.63

4.45

.151

.063

.268

.142

.429

.282

.588

.460

1.070

1.103

1.675

2.145

1208.043604.0352144.0341072.0273432.0271716.0224704.0232352.0188560.0174280.014

13398.0146699.011

537.097403.078953.076715.0611525.0621144.0492091.0521568.0413804.0392853.0315954.0324466.025

302.173302.138536.136536.109858.110858.0881176.0921176.0742140.0702140.0563349.0563349.045

193.270242.216343.212429.170549.171686.137753.144941.1151370.1091712.0872144.0882680.070

134.388201.311238.306357.245381.246572.198523.207784.166951.1571427.1261489.1262233.101

99.529173.423175.416306.333280.335490.269384.282672.225699.2141223.1711094.1721914.138

76.690151.552134.544268.435215.438429.351294.368588.295535.2791070.224837.2251675.180

106.688238.550169.555381.444232.466523.373423.354951.283662.2851489.228

137.685343.549188.575470.460342.437856.349536.3511340.281

156.696428.557283.528778.423443.4251218.340

238.629713.503372.5061116.405

203.738658.590317.5941031.475

175.856611.684273.689957.551

1341.118535.894209.899837.719

% Open Area4" cc2" cc

76%73%

See Panel Width Charts on page 15

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 22: Light Duty Steel Grating & Aluminum Grating

22 www.OhiOgRaTings.cOm

11 & 7 SPACE LOAD TABLES

LOAD TABLE for 11-SGLi-4 & 11-SGLi-2

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

Sec. PropSx*, in3

Ix*, in4

ClearSpan

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"Bar Size,Inches

3/4"

1"

1-1/4"

1-1/2"

2"

2-1/2"

U D CD U D C D U D C D U D C DU D C D U D C D

38

46

55

62

77

91

2.06

2.58

3.11

3.63

4.81

5.92

.206

.086

.365

.194

.585

.384

.802

.627

1.459

1.505

2.284

2.925

1648.043824.0352920.0341460.0274680.0272340.0226416.0233208.018

11672.0175836.014

18270.0149135.011

732.097549.0781298.076973.0612080.0621560.0492852.0522139.0415188.0393891.0318120.0326090.025

412.172412.138730.135730.1081170.1101170.0881604.0921604.0742918.0702918.0564567.0564567.045

264.269330.216467.212584.169749.171936.1371027.1441283.1151868.1092334.0872923.0883654.070

183.388275.310324.305487.244520.247780.197713.2071069.1661297.1571945.1262030.1263045.101

135.528235.423238.415417.332382.336669.269524.282917.226953.2141667.1711491.1722610.138

103.690206.552183.542365.433293.439585.351401.368802.295730.2791459.2231142.2252284.180

144.686324.549231.555520.444317.466713.373576.3531297.283902.2852030.228

117.847292.677187.686468.548257.576642.460467.4361167.349731.3511827.281

155.830425.664212.696583.557386.5281061.422604.4251661.340

178.829535.663324.628973.503507.5061522.405

152.973494.778276.737898.590432.5941405.475

238.855834.684373.6891305.551

1821.117730.893285.8991142.719

% Open Area4" cc2" cc

69%66%

See Panel Width Charts on page 17

LOAD TABLE for 7-SGLi-4 & 7-SGLi-2

PedSpan,Inches

Wt.*Lbs.

Sq. Ft.

Sec. PropSx*, in3

Ix*, in4

ClearSpan

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"Bar Size,Inches

3/4"

1"

1-1/4"

1-1/2"

2"

2-1/2"

U D CD U D C D U D C D U D C DU D C D U D C D

42

51

61

69

86

101

3.01

3.83

4.65

5.47

7.33

9.07

.323

.134

.573

.304

.920

.603

1.261

.985

2.293

2.364

3.589

4.597

2588.0431294.0354584.0342292.0277360.0273680.022

10088.0235044.018

18344.0179172.014

28709.014

14355.011

1150.097863.0782037.0761528.0613271.0622453.0494484.0523363.0418153.0396115.031

12760.0329570.025

647.173647.1391146.1361146.1091840.1101840.0882522.0922522.0744586.0704586.0567177.0567177.045

414.271518.217733.212917.1701178.1721472.1371614.1442018.1152935.1093669.0874594.0885742.070

288.390431.312509.305764.244818.2471227.1981121.2071681.1662038.1573057.1263190.1264785.101

211.531370.425374.416655.332601.3361051.269824.2821441.2261497.2142621.1712344.1724101.138

162.693323.555287.543573.434460.439920.352631.3691261.2951147.2792293.2231794.2253589.180

128.877288.702226.687509.550363.556818.445498.4671121.373906.3542038.2831418.2853190.228

180.833450.666294.687736.549404.5761009.461737.4361834.3491148.3512871.281

243.831669.665333.697917.558606.5281668.423949.4252610.340

204.989613.791280.830841.664510.6291529.503797.5062392.405

239.974776.779434.7381411.590680.5942208.475

374.8561310.684586.6892051.551

2871.1171147.894449.8991794.719

% Open Area4" cc2" cc

54%51%

See Panel Width Charts on page 19

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 23: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 23

AR SERIES

ALUMINUM RIVETED

GRATING PROFILES AVAILABLE...AR SERIES Aluminum Riveted

Riveted grating is the oldest

style of industrial footwalk, but still

the choice of many engineers due to its

ruggedness, reliability and durability. This grating is

composed of straight bearing bars, and bent connecting bars,

which are joined at their contact points by rivets. Since the

connecting bars extend continuously between bearing bars along

the grating spans, they not only serve to join the bearing bars together,

but also contribute to the load carrying capability and lateral stability

of the grating panels. This added dimension makes riveted grating an

ideal choice where high

strength and stiffness are

required. Slip resistant

surfaces are available.

Aluminum Riveted Serrated Grating also available

7"

1-1/8"

SPAN

3/4"

7"

SPAN

SPAN

3-1/2"

SPAN

1-1/8"

3/4"

3-1/2"

12-AR-3.5

18-AR-7

12-AR-7

18-AR-3.5

Page 24: Light Duty Steel Grating & Aluminum Grating

24 www.OhiOgRaTings.cOm

Widt

hSpan

3-1/2"

1-1/8"

Span

7"

1-1/8"

Widt

h 18-AR-3.518-AR-7

PedSpan,Inches

41

45

48

53

55

61

69

76

83

90

Wt.*Lbs.

Sq. Ft.

2.70

3.30

3.10

3.80

3.40

4.40

4.90

5.80

6.40

6.90

Sec. PropSx*, in3

Ix*, in4

0.242

0.121

0.363

0.182

0.378

0.236

0.567

0.355

0.545

0.409

0.817

0.613

1.112

0.973

1.453

1.453

1.838

2.068

2.270

2.837

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"484

0.144484

0.115726

0.144726

0.115757

0.115757

0.09211350.11511350.09210890.09610890.07716340.09616340.07722240.08222240.06629050.07229050.05836770.06436770.05145390.05845390.046

3100.225

3870.180

4650.225

5810.180

4840.180

6050.144

7260.180

9080.144

6970.150

8720.12010460.15013070.12014240.12917790.10318590.11223240.09023530.10029420.08029050.09036320.072

2150.324

3230.259

3230.324

4840.259

3360.259

5040.207

5040.259

7570.207

4840.216

7260.173

7260.2161089

0.173989

0.1851483

0.1481291

0.1621937

0.1301634

0.1442451

0.1152018

0.1303026

0.104

1580.441

2770.353

2370.441

4150.353

2470.353

4320.282

3710.353

6480.282

3560.294

6230.235

5340.294

9340.235

7260.2521271

0.202949

0.2211660

0.1761201

0.1962101

0.1571482

0.1762594

0.141

1820.577

3630.461

1890.460

3780.368

2840.461

5670.368

2720.383

5450.307

4090.384

8170.307

5560.3291112

0.263726

0.2881453

0.230919

0.2561838

0.2051135

0.2302270

0.184

1490.581

3360.466

2240.583

5040.466

2150.486

4840.389

3230.486

7260.389

4390.416

9890.333

5740.3651291

0.292726

0.3241634

0.259897

0.2922018

0.233

1740.599

4360.480

2610.599

6540.480

3560.514

8900.412

4650.4501162

0.360588

0.4001471

0.320726

0.3601816

0.288

2160.726

5940.581

2940.622

8090.498

3840.5441056

0.435486

0.4841337

0.387600

0.4351651

0.349

2470.740

7410.592

3230.648

9680.518

4090.5771226

0.461504

0.5181513

0.415

2750.760

8940.608

3480.6761131

0.541430

0.6091397

0.487

3000.7841051

0.627371

0.7061297

0.564

2840.92311350.737

U - Safe uniform load in pounds/sq. ft.

C - Safe concentrated load in pounds/ft. grating width

D - Deflection in inches

Loads and deflectionsgiven in this table are theoretical, and are based on a unit stress of 12,000 psi.

Bar Size,Inches

1 x 1/8

1 x 3/16

1-1/4 x 1/8

1-1/4 x 3/16

1-1/2 x 1/8

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

18-AR-7 & 18-AR-3-1/2

* Based on 11.621 bars/ft. of grating width. Bearing bars 1-1/8" face-to-face, connecting bars riveted 7" c.c. Add .2 lbs./sq. ft. for 18-AR-3-1/2. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating.

Panel Width Chart (in.) - 18-AR-7 & 18-AR-3-1/2 Dimensions Are Out-to-Out of Bearing Bars**

**Add 1/4" for rivet heads. Deduct 1/16" for each 1/8" bearing bar. Standard panel widths indicated in teal.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16˝Bars 1-1/2 2-13/16 4-1/8 5-7/16 6-3/4 8-1/16 9-3/8 10-11/16 12 13-5/16 14-5/8 15-15/16 17-1/4 18-9/16 19-7/8

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28

3/16˝Bars 21-3/16 22-1/2 23-13/16 25-1/8 26-7/16 27-3/4 29-1/16 30-3/8 31-11/16 33 34-5/16 35-5/8

BB Size,Inches

Thru 1-3/42 - 2-1/2

CB Size, in.All Spacings

3/4 x 1/81 x 1/8

Bars7" cc

3-1/2" cc

% Open Area*1/8"78%77%

3/16"74%73%

Page 25: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 25

Widt

hSpan

3-1/2"

3/4"

Span

7"

3/4"

Widt

h 12-AR-3.512-AR-7

12-AR-7 & 12-AR-3-1/2

Panel Width Chart (in.) - 12-AR-7 & 12-AR-3-1/2

**Add 1/4" for rivet heads. Deduct 1/16" for each 1/8" bearing bar. Standard panel widths indicated in teal.

PedSpan,Inches

49

58

67

75

83

90

98

Wt.*Lbs.

Sq. Ft.

4.50

5.30

6.10

6.80

8.10

8.90

9.60

Sec. PropSx*, in3

Ix*, in4

0.508

0.254

0.794

0.496

1.144

0.858

1.557

1.362

2.034

2.034

2.574

2.896

3.178

3.972

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

U

D

C

D

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

1017

0.144

1017

0.115

1589

0.115

1589

0.092

2288

0.096

2288

0.077

3114

0.082

3114

0.066

4067

0.072

4067

0.058

5148

0.064

5148

0.051

6355

0.058

6355

0.046

651

0.225

813

0.180

1017

0.180

1271

0.144

1464

0.150

1830

0.120

1993

0.129

2491

0.103

2603

0.112

3254

0.090

3294

0.100

4118

0.080

4067

0.090

5084

0.072

452

0.324

678

0.259

706

0.259

1059

0.207

1017

0.216

1525

0.173

1384

0.185

2076

0.148

1808

0.162

2712

0.130

2288

0.144

3432

0.115

2824

0.130

4237

0.104

332

0.441

581

0.353

519

0.353

908

0.282

747

0.294

1307

0.235

1017

0.252

1779

0.202

1328

0.220

2324

0.176

1681

0.196

2941

0.157

2075

0.176

3631

0.141

254

0.576

508

0.460

397

0.461

794

0.368

572

0.384

1144

0.307

778

0.329

1557

0.263

1017

0.288

2034

0.230

1287

0.256

2574

0.205

1589

0.230

3178

0.184

201

0.730

452

0.583

314

0.584

706

0.466

452

0.486

1017

0.389

615

0.416

1384

0.333

803

0.364

1808

0.292

1017

0.324

2288

0.259

1255

0.292

2824

0.233

254

0.719

636

0.576

366

0.600

915

0.480

498

0.514

1246

0.412

651

0.450

1627

0.360

824

0.400

2059

0.320

1017

0.360

2542

0.288

303

0.727

832

0.581

412

0.623

1132

0.498

538

0.545

1479

0.436

681

0.484

1872

0.387

840

0.435

2311

0.348

254

0.863

763

0.692

346

0.741

1038

0.592

452

0.648

1356

0.518

572

0.576

1716

0.461

706

0.518

2118

0.415

295

0.870

958

0.695

385

0.760

1251

0.608

487

0.676

1584

0.541

602

0.609

1955

0.487

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

Loads and deflectionsgiven in this table are theoretical and are based on a unit stress of 12,000 psi.

332

0.882

1162

0.706

420

0.784

1471

0.627

519

0.706

1816

0.565

322

1.025

1287

0.819

397

0.921

1589

0.737

Bar Size,Inches

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16˝Bars 1-1/8 2-1/16 3 3-15/16 4-7/8 5-13/16 6-3/4 7-11/16 8-5/8 9-9/16 10-1/2 11-7/16 12-3/8 13-5/16 14-1/4

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16˝Bars 15-3/16 16-1/8 17-1/16 18 18-15/16 19-7/8 20-13/16 21-3/4 22-11/16 23-5/8 24-9/16 25-1/2 26-7/16 27-3/8 28-5/16

No. of Bars 32 33 34 35 36 37 38 39

3/16˝Bars 29-1/4 30-3/16 31-1/8 32-1/16 33 33-15/16 34-7/8 35-13/16

*Based on 16.269 bars/ft. of grating width. Bearing bars 3/4" face-to-face, connecting bars riveted 7" c.c. Add .2 lbs./sq. ft. for 12-AR-3-1/2. 1/8" by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

7" cc3-1/2" cc

% Open Area*65%64%

Dimensions Are Out-to-Out of Bearing Bars**

Page 26: Light Duty Steel Grating & Aluminum Grating

PLANK

ALUMINUM PLANK

As an alternative to bar grating,

aluminum plank is structurally sound

and cosmetically attractive. Made from

extruded aluminum, plank grating is relatively maintenance free and

has no parts to work loose or splinter. The surface can be provided

unpunched or with a variety of punch patterns for the passage of air,

light, heat or moisture. A diagonal pattern is also available which

meets the ADA requirements for wheelchair accessibility and high

heel foot traffic.

The interconnecting webs offer a flush top walking surface for

maximum foot contact and comfort. Plank can be used as an

alternative to applications requiring open grating with plate

attached to the top surface. Aluminum Plank is used at waste

water treatment plants, for entranceways, walkways, bridges,

trails, marine refrigeration, stadiums and more.

26 www.OhiOgRaTings.cOm

Light Series (Plain Sides)

1.200"2.400"

6"

1", 1-1/4" & 2" only

Heavy Duty (Plain Sides)

1.200" 1.200"

3/4"thru2-1/2"

6"

Heavy Duty (Interlocking Sides)

1.200" 1.200"

2-1/2" Female Edge 2-1/2" Male Edge

1"only

1", 1-1/4", 1-1/2", 2" & 2-1/2" only

6"

1.200"

PLANK SECTION AVAILABILITY...

Page 27: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 27

PLANK SECTION AVAILABILITY (continued)...

Aluminum plank grating is available in five cross-sectional designs: Heavy Duty (plain sides/ interlocking sides), Light Series (plain sides) and Reefer (interlocking sides). The Heavy Duty sections are used primarily in the water and waste treatment markets and the marine market, while the Light Series and Reefer sections are used exclusively in the marine refrigerated stores application. Interlocking Heavy Duty and Reefer sections and edge sections are available in 1" deep grating only.

1"only

6"

1.500"

Reefer (Interlocking Sides)

NOTE: Plank is also available in a Pivot-Lock interlocking design by special request.

UNPUNCHED RECTANGULAR PUNCHEDSQUARE PUNCHED

HEAVY DUTY,LIGHT SERIES HEAVY DUTY, LIGHT SERIESHEAVY DUTY, LIGHT SERIES

Upset Pattern (OGI) Upset Pattern (WACO) Plain PatternPlain Pattern6" Typ

19/32" Typ

6" TypUpset Pattern

6" Typ

19/32" Typ

3"Typ

1"Typ

*Alternate for plate covered aluminum grating

Upset Pattern (OGI)

Aluminum plank grating is available unpunched or with a

variety of punch patterns as shown. Rectangular or square

punched holes are most commonly used for water and

waste treatment plants and in marine applications.

The surface of plank grating can be specified as plain or

with one of two styles of upsets (OGi or WACO) designed

to promote a slip resistant walkway, especially in the

presence of moisture, oil or other spilled substances.

All of our Diagonal Punched Patterns meet ADA

specifications for high heel and wheelchair traffic.

PUNCH PATTERN GUIDE

ALUMINUM PLANK

1.500" 1.500"

3" Female Edge 3" Male Edge

1"only

Page 28: Light Duty Steel Grating & Aluminum Grating

1.200"2.400"

6"

1"only

Light Series

Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. This grating conforms to MIL-G-18015 (SHIPS).

PlankSize,

Inches

1

Sec. PropSx*, in3

Ix*, in4

0.273

0.173

U

D

C

D

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6"

ClearSpan

546

0.113

546

0.090

349

0.177

436

0.141

242

0.254

364

0.204

178

0.347

312

0.278

136

0.452

273

0.363

107

0.570

242

0.458

NonPunched

Weight Per Sq. Ft.

Rect.Punched

SquarePunched

2.1 1.7 1.9

LIGHT SERIES LOAD TABLE

ALUMINUM PLANK

28 www.OhiOgRaTings.cOm

DIAGONAL (ADA) PUNCHED

AlPlank 8*

* number indicates % open area

AlPlank 15* AlPlank 22*

6.000"

1.50"

6.000" 6.000"

.75"

.5"

NOTE: Other non-ADA punch styles (round, oval slot and dog bone) are available by special request.

PLANK FABRICATIONAluminum plank grating is available in 20' or 26' lengths for customer fabrication, or as fabricated by Ohio Gratings according to customer plans and specifications.

Individual 6" plank sections can be banded together to form standard panel widths for ease of handling and installation. When the width of the total grating “run” (number of continuous series of panels) does not result in a total measurement evenly divisible by the 6" sections, the last

1-1/2 2-11/16 3-7/8 5-1/8

6 7-1/2 8-11/16 9-7/8 11-1/8

12 13-1/2 14-11/16 15-7/8 17-1/8

18 19-1/2 20-11/16 21-7/8 23-1/8

24 25-1/2 26-11/16 27-7/8 29-1/8

30 31-1/2 32-11/16 33-7/8 35-1/8

36

Panel Width Chart (in.)12"

31-1/2" 36" 36" 36"

140-1/4"

8-1/2" R

SPAN

102

103

102

101

42"

18"

21"

Allow clearance of 1/4" between panels

Typical Panel Layout

NOTE: Panels made from 6" sections and partial sections are banded on the ends only. Side bands typically are not furnished, unless specified by the customer.

panel can be fabricated from several whole sections and a par-tial section according to the panel width chart shown. In order to meet flatness tolerances, fabricated panels must always be end banded, and should not exceed 36" in width.

The two arrows on the typical panel layout show the span direc-tion which runs at right angles to the supporting members. Iden-tical panels have the same mark numbers. Cutouts and banding are charged as extras according to quantity and size.

DIMENSIONS

Height of product based on load requirements

NOTE: Contact OGi for load ratings on the 2" size.

Page 29: Light Duty Steel Grating & Aluminum Grating

ALUMINUM PLANK

TOLL FREE: 1-800-321-9800 29

HEAVY DUTY LOAD TABLE PlankSize,

Inches

3/4

1

1-1/4

1-1/2

1-3/4

2

2-1/4

2-1/2

PedSpan,Inches

39

49

58

67

75

83

91

97

Sec. PropSx*, in3

Ix*, in4

0.217

0.103

0.416

0.241

0.732

0.491

1.083

0.861

1.496

1.367

1.987

2.063

2.554

3.004

2.985

3.887

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"435

0.121435

0.121833

0.124833

0.09914640.10714640.08521670.09021670.07229920.07829920.06239750.06939750.05551090.06151090.04859710.05559710.044

2780.237

3480.190

5330.193

6660.155

9360.1671171

0.1331387

0.1411734

0.1131915

0.1232394

0.0982544

0.1083180

0.0863270

0.0954087

0.0763821

0.0864777

0.069

1930.342

2900.273

3700.279

5550.223

6500.241

9760.192

9630.2031445

0.16313300.1771995

0.1411766

0.1562650

0.12422700.1373406

0.1102654

0.1243981

0.099

1420.465

2480.371

2720.380

4760.304

4780.328

8360.262

7070.2771238

0.221977

0.2411710

0.1921298

0.2122271

0.1691668

0.1872919

0.1491949

0.1693412

0.135

1100.938

3020.748

1930.810

5320.647

2860.684

7880.547

3950.5951088

0.476525

0.5241445

0.419675

0.4621858

0.370789

0.4182171

0.334

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

Loads and deflectionsgiven in this table are theoretical, and are based on a unit stress of 12,000 psi.

1080.608

2170.485

2080.496

4160.396

3660.428

7320.342

5410.3621083

0.289748

0.3151496

0.251993

0.2771987

0.2211277

0.2442554

0.1951492

0.2212985

0.176

850.770

1930.614

1640.628

3700.502

2890.542

6500.433

4280.458

9630.366

5910.3981330

0.318785

0.3511766

0.2801009

0.3092270

0.2471179

0.2792654

0.223

690.950

1740.760

1330.775

3330.620

2340.669

5850.535

3460.566

8670.452

4780.4921197

0.393636

0.4331590

0.346817

0.3822043

0.305955

0.3452388

0.276

921.117

2770.891

1620.964

4880.771

2400.815

7220.651

3320.708

9970.566

4410.6241325

0.499567

0.5501703

0.440663

0.4971990

0.398

1381.131

4500.904

2050.956

6660.764

2830.832

9200.664

3760.7321223

0.586483

0.6461572

0.517565

0.5841837

0.467

1191.312

4181.049

1761.109

6190.887

2440.964

8550.771

3240.84911350.679

4170.74914590.599

4870.67717060.541

911.714

3661.371

1351.449

5411.157

1871.260

7481.007

2481.109

9930.887

3190.97912770.783

3730.88414920.707

NonPunched

Weight Per Sq. Ft.Rect.

PunchedSquare

Punched

2.2

2.6

3.2

3.8

4.4

4.9

5.5

5.9

1.8

2.2

2.8

3.4

4.0

4.5

5.0

5.5

2.0

2.4

3.0

3.6

4.2

4.7

5.3

5.7

1.200" 1.200"

3/4" thru2-1/2"

6"

Heavy Duty

*Based on punched plank.

Rect.Square

% Open Area*37%23%

Round 13/16" Dia.Round 1" Dia.

% Open Area*23%26%

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

REEFER ONLY

ROUND PUNCHED

REEFER LOAD TABLE PlankSize,

Inches

1

Sec. PropSx*, in3

Ix*, in4

0.384

0.211

U

D

C

D

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6"

ClearSpan

768

0.130

768

0.104

491

0.203

614

0.163

341

0.292

512

0.235

250

0.397

438

0.319

192

0.521

304

0.417

151

0.656

341

0.528

NonPunched

Weight Per Sq. Ft.13/16" Dia.

In-line

1" Dia. Staggered

2.8 2.5 2.5

1"only

6"

1.500"

Reefer (Interlocking Sides)

1.500"

3" Male Edge

1"only

1.500"

3" Female Edge

Page 30: Light Duty Steel Grating & Aluminum Grating

30 www.OhiOgRaTings.cOm

Aluminum plank stair treads can be furnished as fabricated from

full and partial plank sections with end plates and nosings or

as individual extrusions with welded end plates, referred to as

Type “F” treads. Type “F” treads are produced from a high-

strength aluminum alloy, and meet requirements as specified by

BuShips Hull Type plan BU-No. 1604-860041. Type “F” treads

are 1-3/4" deep and are available in widths of 4", 6" or 9". The

top surface can be supplied unpunched, or with a rectangular

punched upset pattern. Type “F” treads are generally used for

shipboard application, however, they can also provide safe,

serviceable steps for ladder in sewage disposal, chemical and

power plants, and refineries.

PLANK TYPE "F" TREADS

Panel Profiles

TREAD WIDTH

1-3/4"

7/16"

"A" "B"

"C"

7/16" x 1-1/4"

Tread Width

Lbs. Per Lin. Ft. Dimensions Suggested Max. Tread

LengthUnpunched Punched "A" "B" "C"

4" 1.48 1.38 1" 2" 1" 3' - 8"

6" 1.90 1.75 1" 4" 1" 4' - 0"

9" 2.72 2.52 1-1/4" 6-1/2" 1" 5' - 1"

Typical Panel Layout

Punch Pattern Availability

UNPUNCHED

4", 6" or 9"

6" shown

RECTANGULAR PUNCHED UPSET

1"

3"

19/32" Typ.

Section Availability

4"

1-3/4"

6"

9"

1-3/4"

1-3/4"

ALUMINUM PLANK

Page 31: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 31

ALUMINUM PLANK APPLICATIONS

Plank Applications

PLANK LUG DETAIL (4 required per panel)

5/8" dia. hole in plank web

1/4" dia. stn. stl. hex head “tek” screw 1/4" x 1/4" x 1"

beveled lug

PLANK LUG

A plank lug inserted and tack welded between flanges, can serve as an anchor block for plank grating.

Page 32: Light Duty Steel Grating & Aluminum Grating

32 www.OhiOgRaTings.cOm

GRATING FRAMES

ALUMINUM GRATING FRAMES

GRATING FRAME DIMENSIONS

In conjunction with aluminum grating,

Ohio Gratings offers an extruded

aluminum grating frame for embedded

concrete applications. This frame features a

continuous ledge to accommodate plank fasteners,

grating clamps, or self-tapping screws for other types of fasteners.

The continuous anchor can be used alone or with supplementary

anchor straps. Angle frame is available fabricated per drawings

with mitred and welded corners or in long lengths with prefabri-

cated corners for installation in the field. Frames can be provided

in the mill finish condition

or powder coated to protect

surfaces which will come into

contact with concrete.

Plank Grating with E Clip. (Compatible with 1/4¨ flange thinckness. Anchor not shown)

DIM “B”

DIM

“A

ContinuousAnchor

1/4"

4" 1"

Optional Anchor

(1/4" x 1" )

1/4"

GR. SIZE

1"

1-1/4"

1-1/2"

1-3/4"

2"

2-1/4"

2-1/2"

DIM ˝A˝

1"

1-1/4"

1-1/2"

1-3/4"

2"

2-1/4"

2-1/2"

DIM ˝B˝

1-1/4"

1-1/2"

1-3/4"

2"

2"

2"

2"

Page 33: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 33

20'- 0' MAX

SPLICE WHEN REQUIRED

PER DRAWING

PE

R

DR

AW

ING

MINI CASE STUDY

Wastewater Treatment Plant Massillon, OH

The city began a major expansion project in 2002. Once

again, aluminum was specified for the walkways

in and around the plant. We provided our aluminum plank

and “I-Bar” along with our aluminum angle frame.

Angle frame is available (see diagram) with mitred

and welded corners. Long lengths are available with

prefabricated corners for handy installations in the field

(miscellaneous steel fabricators prefer aluminum for this

reason in addition to the fact that it is lightweight, flexible

and easily altered in the field).

Frames can be provided in mill finish or with a powder

coat finish to protect surfaces that are in direct contact

with concrete.

Optional Anchor

Fabrication Guidelines

Plan View

Frame sections can be purchased in stock lengths for

customer fabrication or can be fabricated by Ohio

Gratings for immediate installation in the field.

The following Guidelines apply to Fabricated Frames

1. All corners are mitred at 45 degrees and welded on the

back side. Welds are not ground.

2. Nominal small frames (i.e. 1'0" x 1'0" through

5 x 10'0") are made in one piece.

3. Extended trench frames are provided with prefabricated

end sections and long lengths shipped loose for field

butt joining.

4. Stock lengths are 20'0". Longer lengths are available

by request.

ALUMINUM GRATING FRAMES

Page 34: Light Duty Steel Grating & Aluminum Grating

STAIR TREADS

Most grating platform and walkway applications require stair

treads to access the various levels that are inherent in most project

applications. OGi offers a full range of aluminum, carbon and

stainless steel grating tread profiles to meet the various demands

in the marketplace. Whether the project requires a standard

maintenance access tread or a closer mesh and more pedestrian

friendly (ADA) product, OGi can offer a variety of competitive

and cost effective products.

Our sales team and engineering support group can help with

product specifications regarding slip resistance surfaces (serrated,

Algrip™, SlipNot®) as well as selecting the appropriate nosing

for the tread to meet the needs of the client. Nosing options are

shown on pages 36 and 37 for both steel and aluminum products

along with tread details of each of the material types including

the slip resistant options. Stair treads are available with equal end

dimensions for cross bar alignment.

34 www.OhiOgRaTings.cOm

STAIR TREAD TOLERANCES

Overall Dimensional Tolerances

Note: Length of Tread is distance between outer faces of Carrier Plates.

STAIR TREAD

Length +0" / -1/8"W

idth

±1/

8"

12"

1/2" (max.)

Carrier Plate Lean

SlipNot® is registered trademark with WS Molnar Company. AlGrip™ is a trademark of Ross Technologies.

Page 35: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 35

STAIR TREADS

1-1/4"

1-3/

8"

1/8"

Grooved or Corrugated

1-1/4"

1-3/

8"

1/8"

Slip-Not

1-1/4"

1/8"

1-3/

8"5/

16"

Cast Aluminum Abrasive

ALUMINUM STAIR TREAD DETAILSTread Width

Grating1-1/4"

1-1/8" DIM "A" 1-1/4"

1-1/

4"G

ratin

g D

epth

DIM

"C

"

DIM

"B

"

7/16" x 1-7/16" Slot & 7/16" Hole

Nosing

Treads with Carrier Plates

DIM

"B

"

1-1/4" GratingTread Width

Gra

ting

Dep

th

DIM

"C

"

1-1/

4"

1-1/4"DIM "A"1-1/8"

7/16" x 1-7/16" Slot & 7/16" Hole

Mid-Point of TreadNosing

For Close Mesh Grating, 7 & 11 spaced grating. 8 Spacing (1/2" c.c.) available upon request. Please call for details.

Treads with Carrier Plates & Welded Support

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

STEEL STAIR TREAD DETAILSTread Width

Grating1-1/4"

1-1/8" DIM "A" 1-1/4"

1-1/

4"G

ratin

g D

epth

DIM

"C

"

DIM

"B

"

7/16" x 1-7/16" Slot & 7/16" Hole

Nosing

Treads with Carrier Plates

Tread Width

Grating1-1/4"

1-1/8" DIM "A" 1-1/4"

1-1/

4"G

ratin

g D

epth

DIM

"C

"

DIM

"B

"

7/16" x 1-7/16" Slot & 7/16" Hole

Nosing Mid-Point of Tread

For Close Mesh Grating, 7 & 11 spaced grating. 8 Spacing (1/2" c.c.) available upon request. Please call for details.

Treads with Carrier Plates & Welded Support

Carrier Plate min. 1/8" thick

Carrier Plate min. 1/8" thick

Welded Support to extend to mid-point of tread or first 5" of tread (whichever is greater)

Carrier Plate min. 1/8" thick

Carrier Plate min. 1/8" thick

Welded Support to extend to mid-point of tread or first 5" of tread (whichever is greater)

No

sin

g D

etai

ls

1-1/4"

1-1/

4"

1/8"

Checker Plate

Slip-Not

1-1/

4"

1-1/4"

1/8"

1/2" Max.

Radius

1/2" Max.

Radius

1-1/4"

1/8"

1-1/

4"

AlGrip

1-1/4"

1-1/

4" Cast Aluminum Abrasive

5/16

"

1/8"

No

sin

g D

etai

ls

Page 36: Light Duty Steel Grating & Aluminum Grating

36 www.OhiOgRaTings.cOm

STAIR TREADS

24

28

31

30

34

38

36

42

47

51

58

61

66

66

66

66

73

19 1-3/16"

c.c.

1 x 1/8

1 x 3/16

1 x 1/4

1-1/4 x 1/8

1-1/4 x 3/16

1-1/4 x 1/4

1-1/2 x 1/8

1-1/2 x 3/16

1-1/2 x 1/4

1-3/4 x 3/16

1-3/4 x 1/4

2 x 3/16

2 x 1/4

2-1/4 x 3/16

2-1/4 x 1/4

2-1/2 x 3/16

2-1/2 x 1/4

15 15/16"

c.c.

11 11/16"

c.c.

7 7/16" c.c.

19 1-3/16"

c.c.

15 15/16"

c.c.

11 11/16"

c.c.

7 7/16" c.c.

19 1-3/16"

c.c.

15 15/16"

c.c.

11 11/16"

c.c.

7 7/16" c.c.

19 1-3/16"

c.c.

15 15/16"

c.c.

11 11/16"

c.c.

7 7/16" c.c.

SG, SGF, ADT Series Plain Surface

SG, SGF, ADT Series Serrated Surface

SGI Series Striated Surface

SGLi Series Striated Surface

27

30

33

32

37

41

39

46

52

56

64

66

66

66

69

70

81

28

32

34

40

42

50

61

66

66

77

32

36

40

47

50

59

66

68

80

94

21

26

27

28

31

34

33

38

43

46

52

56

63

66

66

66

67

24

27

29

30

33

37

36

42

47

51

58

61

66

66

66

66

75

26

28

31

36

38

45

55

66

66

71

28

32

36

41

45

53

66

66

74

87

28

34

42

51

61

66

66

30

37

46

56

66

66

70

32

40

50

61

66

66

77

36

47

59

66

68

80

94

24

31

37

52

66

28

34

40

57

66

29

36

43

62

66

34

43

53

66

82

Additional configurations available upon inquiry. 1. Table of widths based on 3/16" thick bearing bars (1/4" I-Bar) and standard 1-3/16" c.c. bar spacing (1-1/8" face-to-face for riveted grating. 2. Maximum tread length based on 300# concentrated load on front 5" of tread at center of tread length and max. D=1/240 of length. Design treads exceeding 66" length for 300# concentrated loads at 1/3 points. Note: Riveted grating treads available upon inquiry. See page 23 for description of Grating Series. 3. Plank Grating is standard Heavy Duty.

Grating Depth

Plank3 Grating

1" 30

1-1/4" 36

1-1/2" 44

1-3/4" 53

2" 63

2-1/4" 66

2-1/2" 70

Max Plank Tread Length2

Maximum Tread Length2 (in.)

# of bearing

bars

Width (incudes nosing)DIM "A"SG, SDF,

ADT SeriesSGI

SeriesSGLi Series

AR Series

Plank Series

5 6-3/16" 6-1/4" 6-3/16" 6-11/16" 6-3/8" 2-1/2"

6 7-3/8" 7-7/16" 7-3/8" 8" 7-1/4" 4-1/2"

7 8-9/16" 8-5/8" 8-9/16" 9-5/16" 8-3/4" 4-1/2"

8 9-3/4" 9-13/16" 9-3/4" 10-5/8" 9-15/16" 7"

9 10-15/16" 11" 10-15/16" 11-15/16" 11-1/8" 7"

10 12-1/8" 12-3/16" 12-1/8" 13-1/4" 12-3/8" 7"

Standard Tread Widths1

Grating Depth

DIM "B"

DIM "C"

1" 2-1/4" 3"

1-1/4" 2-1/4" 3"

1-1/2" 2-1/4" 3"

1-3/4" 2-1/4" 3"

2" 3-1/4" 4"

2-1/4" 3-1/4" 4"

2-1/2" 3-1/4" 4"

Carrier Plate Dimensions

Bar Size, Inches

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Groved Nosing Standard on Alu-minum Treads

Slip-Not® Nosing is Optional on Aluminum Treads

Abrasive Nosing is Optional on Aluminum Treads

ALUMINUM STAIR TREAD SlipNot® is registered trademark with WS Molnar Company. AlGrip™ is a trademark of Ross Technologies.

Page 37: Light Duty Steel Grating & Aluminum Grating

Checkerplate Nosing is Standard on Steel treads

Slip-Not® Nosing is Available on Steel Treads

Abrasive Nosing is Available on Steel Treads but not recommended

31

41

49

43

56

63

56

66

66

66

74

78

89

92

106

107

123

19 1-3/16"

c.c.

1 x 1/8

1 x 3/16

1 x 1/4

1-1/4 x 1/8

1-1/4 x 3/16

1-1/4 x 1/4

1-1/2 x 1/8

1-1/2 x 3/16

1-1/2 x 1/4

1-3/4 x 3/16

1-3/4 x 1/4

2 x 3/16

2 x 1/4

2-1/4 x 3/16

2-1/4 x 1/4

2-1/2 x 3/16

2-1/2 x 1/4

15 15/16"

c.c.

11 11/16"

c.c.

7 7/16" c.c.

19 1-3/16"

c.c.

15 15/16"

c.c.

11 11/16"

c.c.

7 7/16" c.c.

W, SGCS, SGSS, DT Series Plain Surface

W, SGCS, SGSS, DT Series Serrated Surface

36

48

53

50

61

66

65

66

67

72

82

87

99

103

118

119

137

41

51

56

66

66

66

78

95

112

130

51

59

66

66

66

76

95

115

136

159

27

34

42

37

50

56

49

63

66

66

67

72

82

85

97

100

114

30

40

46

43

54

60

58

66

66

66

74

79

91

95

108

111

127

34

45

49

58

63

66

71

86

103

121

45

51

58

66

66

68

85

105

125

148

Additional configurations available upon inquiry. 1. Table of widths based on 3/16" thick bearing bars (1/4" I-Bar) and standard 1-3/16" c.c. bar spacing (1-1/8" face-to-face for riveted grating. 2. Maximum tread length based on 300# concentrated load on front 5" of tread at center of tread length and max. D=1/240 of length. Design treads exceeding 66" length for 300# concentrated loads at 1/3 points. Note: Riveted grating treads available upon inquiry. See page 52 for description of Grating Series.

Maximum Tread Length2 (in.)

# of bearing

bars

Width (incudes nosing)DIM "A"W, SGCS,

SGSS, DT SeriesR

Series

5 6-3/16" 6-11/16" 2-1/2"

6 7-3/8" 8" 4-1/2"

7 8-9/16" 9-5/16" 4-1/2"

8 9-3/4" 10-5/8" 7"

9 10-15/16" 11-15/16" 7"

10 12-1/8" 13-1/4" 7"

Standard Tread Widths1

Grating Depth

DIM "B"

DIM "C"

1" 1-3/4" 2-1/2"

1-1/4" 1-3/4" 2-1/2"

1-1/2" 2-1/4" 3"

1-3/4" 2-1/4" 3"

2" 3-1/4" 4"

2-1/4" 3-1/4" 4"

2-1/2" 3-1/4" 4"

Carrier Plate Dimensions

Bar Size, Inches

TOLL FREE: 1-800-321-9800 37

STAIR TREADS

Algrip™ Nosing is Available & Recommended on Steel Treads

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

STEEL STAIR TREAD SlipNot® is registered trademark with WS Molnar Company. AlGrip™ is a trademark of Ross Technologies.

Page 38: Light Duty Steel Grating & Aluminum Grating

38 www.OhiOgRaTings.cOm

“OGi specializes in complex projects requiring intricate

layout and custom fabrication”

LIGHT DUTY STEEL FEATURES & BENEFITS

Light Duty Steel grating is the workhorse of the

industrial flooring market, finding applications in

conveyor systems, operating plants, highways and

bridge platforms and walkways, machinery floors,

refineries, tank stairways and walkways, and power

plants. The open grid construction of steel grating

provides maximum passage for light, air circulation

and drainage, while offering low installation and

maintenance costs.

Ohio Gratings prides itself on offering the widest

selection of Light Duty Steel grating available in

the industry. As a stocking, manufacturer and

fabricator of electro forge welded steel grating, we

inventory a variety of sizes and spacings for ship-

ment in panel form, or for fabrication per plans and

specs. OGI specializes in engineering those tough

jobs requiring intricate layout and fabrication.

In addition to fabricating standard electro-forge

welded steel grating, OGI manufactures and fab-

ricates Dove Tail pressure locked grating, Riveted

Steel grating, and Swaged Carbon and Stainless

Steel grating. Dove Tail pressure locked, Riveted

and Swaged grating offer smoother lines and a

more pleasing appearance than the typical welded

grating. While still industrial in nature, these grating

types may be more appropriate than welded grating

for some applications. Please contact the factory for

assistance in choosing the right Light Duty Steel

grating for your particular application.

Whether the requirement is for stock panels or

custom fabrication “Made Right and Shipped

When Promised”, Ohio Gratings is the choice of a

nationwide base of customers whose primary

criteria are quality and service.

Features & Benefits

Page 39: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 39

LIGHT DUTY STEEL PRODUCTS

Light Duty Swaged Stainless Steel

Light Duty Riveted Steel

Dove tail pressure locked grating offers the high strength and stiffness of welded steel grating along with the smooth, clean lines of a flush top rectangular cross bar. A variety of bar depths, finishes and spacings are available including 1/4” and 1/2” which conform to ADA requirements. Slip resistant finishes available upon request.

Swaged Carbon Steel grating is similar in construction to our aluminum bar grating products. Rectangular bearing bars and tubular cross bars are joined together via the swaging process. This process keeps the material free from the warping and weld flash inherent in the electroforging process. This profile offers the same flexibility as our other mechanically locked grating products as to multiple spacings (including ADA requirements), bar depths and finishes. Slip resistant surfaces are also available.

Swaged Stainless Steel is offered in alloys of either Type 304 or 316. As with the swaged grating, this product is also manufactured free of the warping, twisting and burn marks which are characteristic of electroforged stainless grating. A variety of spacing options and bar depths are available, including those that meet ADA Requirements.

Riveted grating is the oldest style of bar grating, but still the choice of many engineers due to its reliability and durability. OGI manufactures and fabricates multiple sizes and spacings. Various finishes and slip resistant surfaces are available.

Light Duty Steel Dove Tail

Light Duty Swaged Carbon Steel

Electro-forging, a machine process combining hydraulic pressure and heat fusion, is the most popular and economical method for manufacturing steel grating panels. OGI offers stock panels for immediate shipment, or custom fabricated sizes. Various spacings, bar depths, finishes, and slip resistant surfaces are available.

Light Duty Welded Steel

Light Duty PressLockPressLock products are manufactured on our computer controlled production lines, where the bearing bars are notched and then “locked” with the cross bars at very high pressure. Available in increments of 7/16”, PressLock offers a wide variety of mesh openings to match up to the appropriate loading requirements and project application. Various finishes are available.

Page 40: Light Duty Steel Grating & Aluminum Grating

40 www.OhiOgRaTings.cOm

Design ServiceAvailable at no charge to the specifying architect/ engineer or fabricator, is access to a computer program which provides uniform load and deflection (actual or fraction of span) analysis of grating products. Just call, write or fax your design criteria – loading, span, allowable deflection, or grating size desired – and we will provide you with the information you require.

Step 1. Determine M:

Step 2. Determine U or C:

Step 3. Check D*:

SPANLOAD

DEFLECTION FT. OF

WIDTH

SPANLOAD

DEFLECTION FT. OF

WIDTH

Information of a technical nature contained herein is intended only for evaluation by technically skilled persons, with any use thereof to be at their independent discretion and risk. Such information is reliable when evaluated in the proper manner under conditions as described herein. Ohio Gratings, Inc. shall have no responsibility or liability for results obtained or damages resulting from improper evaluation or use.

*Deflection should be limited to 1/4" under 100# uniform load to afford pedestrian comfort.

M =

C =

D =

FS12

4ML

C (L x 12)3

48 EI

M =

U =

D =

FS12

8ML2

5UL (L x 12)3

384 EI

LIGHT DUTY STEEL DESIGN CRITERIA

Light Duty Steel Grating is best suited for use in conjunction with pedestrian traffic, and for verylight, rubber pneumatic tired rolling traffic (carts, dollies and hand trucks). For other rolling loads

(forklifts, cars, trucks, etc.) see the Heavy Duty Steel Grating section, page 66.

Uniform Load Concentrated Load

The tables of safe loads which follow have been computed using the following design parameters:

U = Uniform Load - lbs/ft2

C = Concentrated Load - lbs/ft of grating width

S = Section Modulus - in3/ft of grating width

I = Moment of Inertia - in4/ft of grating width

L = Simple Clear Span - feet

D = Deflection - inches

E = Modulus of Elasticity (Carbon Steel =

29,000,000 psi, T-304 and T-316 Stainless

Steel = 28,000,000 psi)

F = Allowable Bending Stress (Carbon Steel =

18,000 psi, T-304 and T-316 Stainless

Steel = 20,000 psi)

M = Bending Moment

Page 41: Light Duty Steel Grating & Aluminum Grating

W SERIES

LIGHT DUTY WELDED STEEL

Light duty steel grating is

the workhorse of the industrial

flooring market and is used for many

different types of pedestrian (walking) applications. The

open grid construction provides maximum passage for light,

air circulation and drainage.

Electro-forging, a machine process combining hydraulic pressure

and heat fusion, is readily available and an economical method

for manufacturing steel grating panels. The bearing bar surface can

be ordered smooth or with a serrated surface for maximum

skid resistance. Also

available in Stainless

Steel, type 304 or 316,

upon request.

GRATING PROFILES AVAILABLE...W SERIES Light Duty Welded Steel

4"

1-3/16"

15/16"

SPAN

SPAN

SPAN

11/16"

19-W-4

15-W-4

11-W-4

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

See load tables begining on page 45.

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-W-2, 15-W-2 and 11-W-2

Serrated surface also available.

TOLL FREE: 1-800-321-9800 41

Page 42: Light Duty Steel Grating & Aluminum Grating

DT SERIES

LIGHT DUTY STEEL DOVE TAIL

See load tables begining on page 45.

42 www.OhiOgRaTings.cOm

GRATING PROFILES AVAILABLE...DT SERIES Light Duty Steel Dove Tail

Traditionally designed, Dove

Tail slot pressure locked grating offers

the high strength and stiffness of welded grating,

along with the smooth, clean lines of a flush top rectangular

cross bar. Bearing bars and cross bars are precision slotted,

assembled in egg-crate fashion and hydraulically pressed together

to form a tightly locked, rigidly stable panel grid. This grating is

available in a wide variety of spacings including a 1/4" or 1/2"

opening product, which conforms with provisions for the

“Americans with Disabilities Act” (July 1991). These products

are part of our Grater Access line and are available with cross bars

on 2" or 4" centers. This is also a popular style in the architectural

community because of the aesthetic eye appeal of the product and

the ability to maintain tighter tolerances. This style is also available

in stainless steel. Slip resistant surfaces are available upon request.

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16" 7-DT-4

19-DT-4

15-DT-4

11-DT-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-DT-2, 15-DT-2, 11-DT-2 and 7-DT-2

Serrated surface also available.

*8 Space available upon request.

Page 43: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 43

SGCS SERIES

LIGHT DUTY SWAGED CARBON STEEL

The swaging process allows

the assembly of bar grating panels

by mechanically locking the cross bars at

right angles to the bearing bars. It provides the clean

crisp lines of a recessed cross bar and eliminates the jagged weld

flash inherent with welded bar grating.

Additionally, the heat generated as part of the electro-forging

process, limits how close together the bars may be placed.

By using the most modern technology available, swaged bar

grating is available in a wide variety of spacings including a 1/4"

or 1/2" opening product, which conforms with provisions for the

“Americans with Disabilities Act” (July 1991). Because of its

aesthetic appeal and the ability to meet tight tolerances, this

product is often used for architectural applications.

Slip resistant surfaces are available upon request. See load tables begining on page 45.

GRATING PROFILES AVAILABLE...SGCS SERIES Light Duty Swaged Carbon Steel

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16" 7-SGCS-4

19-SGCS-4

15-SGCS-4

11-SGCS-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-SGCS-2, 15-SGCS-2, 11-SGCS-2 and 7-SGCS-2

*8 Space available upon request.

Page 44: Light Duty Steel Grating & Aluminum Grating

Wid

th Span

4" 1-3/16"

Wid

th Span

2" 1-3/16"

44 www.OhiOgRaTings.cOm

19-W-4 19-W-2

STEEL LIGHT DUTY WELDED

Bars4" cc2" cc

% Open Area*1/8"83%76%

3/16"77%71%

STEEL LIGHT DUTY DOVE TAIL

STEEL LIGHT DUTY SWAGED CARBON

Bars4" cc2" cc

% Open Area*1/8"83%76%

3/16"78%72%

19 SPACE PROFILES

19-DT-4 19-DT-2

19-SGCS-4 19-SGCS-2

Wid

th Span

4" 1-3/16"

Widt

h Span

2" 1-3/16"

Widt

h Span

4" 1-3/16"

Widt

h Span

2" 1-3/16"

Bars4" cc2" cc

% Open Area*1/8"86%84%

3/16"81%79%

Page 45: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 45

19 SPACE LOAD TABLES

PedSpan,Inches

46

51

57

61

67

70

77

87

96

105

113

Wt.*Lbs.

Sq. Ft.

5.43

4.88

7.04

5.96

8.64

7.04

10.25

11.87

13.48

15.08

16.70

Sec. PropSx*, in3

Ix*, in4

0.178

0.067

0.211

0.105

0.316

0.158

0.329

0.206

0.493

0.308

0.474

0.355

0.711

0.533

0.967

0.846

1.263

1.263

1.599

1.798

1.974

2.467

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

Clear Span

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"533

0.099533

0.079632

0.075632

0.060947

0.074947

0.060987

0.060987

0.04814800.06014800.04814210.05014210.04021320.05021320.04029010.04329010.03437890.03737890.03047960.03347960.02659210.03059210.024

3410.155

4260.124

4040.116

5050.093

6060.116

7580.093

6320.093

7890.074

9470.0931184

0.074909

0.0781137

0.0621364

0.0781705

0.0621857

0.0672321

0.0532425

0.0583032

0.0473069

0.0523837

0.0413789

0.0474737

0.037

2370.224

3550.179

2810.168

4210.134

4210.168

6320.134

4390.134

6580.107

6580.134

9870.107

6320.112

9470.089

9470.1121421

0.0891289

0.0961934

0.0771684

0.0842526

0.0672132

0.0743197

0.0602632

0.0673947

0.054

1740.304

3050.244

2060.228

3610.183

3090.228

5410.182

3220.182

5640.146

4830.182

8460.146

4640.152

8120.122

6960.1521218

0.122947

0.1301658

0.1041237

0.1142165

0.0911566

0.1012741

0.0811933

0.0913383

0.073

1330.397

2660.317

1580.298

3160.239

2370.298

4740.239

2470.239

4930.191

3700.238

7400.191

3550.198

7110.159

5330.1991066

0.159725

0.1701451

0.136947

0.1491895

0.1191199

0.1322398

0.1061480

0.1192960

0.095

1250.378

2810.302

1870.377

4210.302

1950.302

4390.242

2920.301

6580.241

2810.252

6320.201

4210.251

9470.201

5730.2151289

0.172749

0.1891684

0.151947

0.1682132

0.1341170

0.1512632

0.121

1520.467

3790.372

1580.373

3950.298

2370.373

5920.298

2270.310

5680.248

3410.310

8530.248

4640.2661160

0.213606

0.2331516

0.186767

0.2071918

0.165947

0.1862368

0.149

1300.449

3590.361

1960.451

5380.360

1880.376

5170.301

2820.376

7750.300

3840.3221055

0.257501

0.2821378

0.225634

0.2501744

0.200783

0.2252153

0.180

1640.535

4930.429

1580.447

4740.358

2370.447

7110.358

3220.383

9670.306

4210.3351263

0.268533

0.2981599

0.238658

0.2681974

0.215

2020.525

6560.420

2750.450

8930.360

3590.3941166

0.315454

0.3501476

0.280561

0.3151822

0.252

2370.522

8290.417

3090.45610830.365

3920.40613700.324

4830.36516920.292

1810.680

7250.545

2370.596

9470.477

3000.53011990.424

3700.47714800.381

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

Loads and deflectionsgiven in this table are theoretical, and based on a unit stress of 18,000 psi.

*Based on 10.105 bars/ft. of grating width. Bearing bars 1-3/16" c.c. Add .6 lbs./sq. ft. for 19-SGCS-2. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-3/8 2-9/16 3-3/4 4-15/16 6-1/8 7-5/16 8-1/2 9-11/16 10-7/8 12-1/16 13-1/4 14-7/16 15-5/8 16-13/16 18

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 19-3/16 20-3/8 21-9/16 22-3/4 23-15/16 25-1/8 26-5/16 27-1/2 28-11/16 29-7/8 31-1/16 32-1/4 33-7/16 34-5/8 35-13/16

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in blue.

BarSize,

Inches

3/4 x 3/16

1 x 1/8

1 x 3/16

1-1/4 x 1/8

1-1/4 x 3/16

1-1/2 x 1/8

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

Dimensions Are Out-to-Out of Bearing Bars**Panel Width Chart (in.) - 19-W-4, 19-W-2, 19-DT-4, 19-DT-2, 19-SGCS-4 & 19-SGCS-2

Light Duty Welded, Light Duty Dove Tail & Light Duty Swaged Carbon Steel

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 46: Light Duty Steel Grating & Aluminum Grating

46 www.OhiOgRaTings.cOm

Wid

th Span

4" 15/16"

Wid

th Span

2" 15/16"

15-W-4 15-W-2

STEEL LIGHT DUTY WELDED

STEEL LIGHT DUTY DOVE TAIL

STEEL LIGHT DUTY SWAGED CARBON

15 SPACE PROFILES

15-DT-4 15-DT-2

15-SGCS-4 15-SGCS-2

Wid

th Span

4" 15/16"

Widt

h Span

2" 15/16"

Widt

h Span

4" 15/16"

Widt

h Span

2" 15/16"

4" cc2" cc

73%67%

% Open Area*

4" cc2" cc

77%75%

% Open Area*

4" cc2" cc

74%68%

% Open Area*

Page 47: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 47

15 SPACE LOAD TABLES

Dimensions Are Out-to-Out of Bearing Bars**Panel Width Chart (in.) - 15-W-4, 15-W-2, 15-DT-4, 15-DT-2, 15-SGCS-4 & 15-SGCS-2

Light Duty Welded, Light Duty Dove Tail & Light Duty Swaged Carbon Steel

Clear Span

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

*Based on 12.8 bars/ft. of grating width. Bearing bars 15/16" c.c. Add .8 lbs./sq. ft. for 15-W-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

Loads and deflectionsgiven in this table are theoretical, and are based on a unit stress of 18,000 psi.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-1/8 2-1/16 3 3-15/16 4-7/8 5-13/16 6-3/4 7-11/16 8-5/8 9-9/16 10-1/2 11-7/16 12-3/8 13-5/16 14-1/4

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 15-3/16 16-1/8 17-1/16 18 18-15/16 19-7/8 20-13/16 21-3/4 22-11/16 23-5/8 24-9/16 25-1/2 26-7/16 27-3/8 28-5/16

No. of Bars 32 33 34 35 36 37 38 39

3/16" Bars 29-1/4 30-3/16 31-1/8 32-1/16 33 33-15/16 34-7/8 35-13/16

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

49

60

71

82

92

102

111

120

Wt.Lbs.

Sq. Ft.

7.11

9.27

11.43

13.82

15.98

18.14

20.16

22.32

Sec. PropSx*, in3

Ix*, in4

0.225

0.084

0.400

0.200

0.625

0.391

0.900

0.675

1.225

1.072

1.600

1.600

2.025

2.278

2.500

3.125

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

675

0.099

675

0.079

1200

0.074

1200

0.060

1875

0.060

1875

0.048

2700

0.050

2700

0.040

3675

0.043

3675

0.034

4800

0.037

4800

0.030

6075

0.033

6075

0.026

7500

0.030

7500

0.024

432

0.155

540

0.124

768

0.116

960

0.093

1200

0.093

1500

0.074

1728

0.078

2160

0.062

2352

0.067

2940

0.053

3072

0.058

3840

0.047

3888

0.052

4860

0.041

4800

0.047

6000

0.037

300

0.223

450

0.179

533

0.167

800

0.134

833

0.134

1250

0.107

1200

0.112

1800

0.089

1633

0.096

2450

0.077

2133

0.084

3200

0.067

2700

0.074

4050

0.060

3333

0.067

5000

0.054

220

0.304

386

0.243

392

0.228

686

0.183

612

0.182

1071

0.146

882

0.152

1543

0.122

1200

0.130

2100

0.104

1567

0.114

2743

0.091

1984

0.101

3471

0.081

2449

0.091

4286

0.073

169

0.398

338

0.318

300

0.298

600

0.238

469

0.238

938

0.191

675

0.199

1350

0.159

919

0.170

1838

0.136

1200

0.149

2400

0.119

1519

0.132

3038

0.106

1875

0.119

3750

0.095

133

0.502

300

0.402

237

0.377

533

0.301

370

0.301

833

0.241

533

0.251

1200

0.201

726

0.215

1633

0.172

948

0.189

2133

0.151

1200

0.168

2700

0.134

1481

0.151

3333

0.121

192

0.466

480

0.372

300

0.372

750

0.298

432

0.310

1080

0.248

588

0.266

1470

0.213

768

0.233

1920

0.186

972

0.207

2430

0.166

1200

0.186

3000

0.149

159

0.564

436

0.450

248

0.451

682

0.361

357

0.375

982

0.300

486

0.322

1336

0.257

635

0.282

1745

0.225

803

0.250

2209

0.200

992

0.225

2727

0.180

208

0.535

625

0.429

300

0.447

900

0.358

408

0.383

1225

0.306

533

0.335

1600

0.268

675

0.298

2025

0.238

833

0.268

2500

0.215

256

0.525

831

0.420

348

0.450

1131

0.360

454

0.393

1477

0.315

575

0.350

1869

0.280

710

0.315

2308

0.252

220

0.607

771

0.486

300

0.521

1050

0.417

392

0.456

1371

0.365

496

0.406

1736

0.324

612

0.365

2143

0.292

230

0.682

919

0.545

300

0.596

1200

0.477

380

0.530

1519

0.424

469

0.477

1875

0.381

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in blue.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 48: Light Duty Steel Grating & Aluminum Grating

48 www.OhiOgRaTings.cOm

Wid

th Span

4" 11/16"

Wid

th Span

2" 11/16"

Wid

th Span

4"11/16"

Wid

th Span

2" 11/16"

Wid

th

Span

4"11/16"

Widt

h Span

2" 11/16"

11-W-4 11-W-2

STEEL LIGHT DUTY WELDED

STEEL LIGHT DUTY DOVE TAIL

STEEL LIGHT DUTY SWAGED CARBON

11 SPACE PROFILES

11-DT-4 11-DT-2

11-SGCS-4 11-SGCS-2

4" cc2" cc

66%57%

% Open Area*

4" cc2" cc

70%68%

% Open Area*

4" cc2" cc

67%62%

% Open Area*

Page 49: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 49

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

*Based on 17.455 bars/ft. of grating width. Bearing bars 11/16" c.c. Add .8 lbs./sq. ft. for 11-W-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

**Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in blue.

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 7/8 1-9/16 2-1/4 2-15/16 3-5/8 4-5/16 5 5-11/16 6-3/8 7-1/16 7-3/4 8-7/16 9-1/8 9-13/16 10-1/2

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 11-3/16 11-7/8 12-9/16 13-1/4 13-15/16 14-5/8 15-5/16 16 16-11/16 17-3/8 18-1/16 18-3/4 19-7/16 20-1/8 20-13/16

No. of Bars 32 33 34 35

3/16" Bars 21-1/2 22-3/16 22-7/8 23-9/16

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

53

65

77

89

99

110

120

130

Wt.Lbs.

Sq. Ft.

9.28

12.16

15.04

18.28

21.16

24.04

26.74

29.62

Sec. PropSx*, in3

Ix*, in4

0.307

0.115

0.545

0.273

0.852

0.533

1.227

0.920

1.670

1.462

2.182

2.182

2.761

3.107

3.409

4.261

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

920

0.099

920

0.079

1636

0.074

1636

0.060

2557

0.060

2557

0.048

3682

0.050

3682

0.040

5011

0.043

5011

0.034

6546

0.037

6546

0.030

8284

0.033

8284

0.026

10228

0.030

10228

0.024

589

0.155

736

0.124

1047

0.116

1309

0.093

1636

0.093

2046

0.075

2356

0.078

2946

0.062

3207

0.066

4009

0.053

4189

0.058

5237

0.047

5302

0.052

6627

0.041

6546

0.047

8182

0.037

409

0.223

614

0.179

727

0.168

1091

0.134

1136

0.134

1705

0.107

1636

0.112

2455

0.089

2227

0.096

3341

0.077

2909

0.084

4364

0.067

3682

0.074

5523

0.060

4546

0.067

6818

0.054

301

0.305

526

0.243

534

0.228

935

0.182

835

0.183

1461

0.146

1202

0.152

2104

0.122

1636

0.130

2864

0.104

2137

0.114

3740

0.091

2705

0.101

4734

0.081

3340

0.091

5844

0.073

230

0.397

460

0.318

409

0.298

818

0.238

639

0.238

1278

0.191

920

0.199

1841

0.159

1253

0.170

2506

0.136

1636

0.149

3273

0.119

2071

0.132

4142

0.106

2557

0.119

5114

0.095

182

0.503

409

0.402

323

0.377

727

0.302

505

0.302

1136

0.241

727

0.251

1636

0.201

990

0.215

2227

0.172

1293

0.189

2909

0.151

1636

0.168

3682

0.134

2020

0.151

4546

0.121

262

0.466

655

0.373

409

0.372

1023

0.298

589

0.310

1473

0.248

802

0.266

2005

0.213

1047

0.233

2618

0.186

1325

0.207

3314

0.166

1636

0.186

4091

0.149

216

0.562

595

0.451

338

0.450

930

0.361

487

0.376

1339

0.300

663

0.322

1822

0.257

866

0.282

2380

0.225

1095

0.250

3012

0.200

1352

0.225

3719

0.180

284

0.536

852

0.429

409

0.447

1227

0.357

557

0.383

1670

0.306

727

0.335

2182

0.268

920

0.298

2761

0.238

1136

0.268

3409

0.214

242

0.629

787

0.504

349

0.525

1133

0.420

474

0.449

1542

0.360

620

0.394

2014

0.315

784

0.350

2549

0.280

968

0.315

3147

0.252

301

0.609

1052

0.487

409

0.521

1432

0.417

534

0.456

1870

0.365

676

0.405

2367

0.324

835

0.365

2922

0.292

230

0.794

920

0.635

313

0.681

1253

0.545

409

0.596

1636

0.477

518

0.530

2071

0.424

639

0.477

2557

0.381

Loads and deflections are theoretical and based on a unit stress of 18,000 psi.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 7/8 1-9/16 2-1/4 2-15/16 3-5/8 4-5/16 5 5-11/16 6-3/8 7-1/16 7-3/4 8-7/16 9-1/8 9-13/16 10-1/2

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 11-3/16 11-7/8 12-9/16 13-1/4 13-15/16 14-5/8 15-5/16 16 16-11/16 17-3/8 18-1/16 18-3/4 19-7/16 20-1/8 20-13/16 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

3/16" Bars 21-1/2 22-3/16 22-7/8 23-9/16 24-1/4 24-15/16 25-5/8 26-5/16 27 27-11/16 28-3/8 29-1/16 29-3/4 30-7/16 31-1/8

No. of Bars 47 48 49 50 51 52 53

3/16" Bars 31-13/16 32-1/2 33-3/16 33-7/8 34-9/16 35-1/4 35-15/16 **Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in blue.

11 SPACE LOAD TABLES

Light Duty Welded, Light Duty Dove Tail & Light Duty Swaged Carbon Steel

Dimensions Are Out-to-Out of Bearing Bars**Panel Width Chart (in.) - 11-W-4 & 11-W-2

Panel Width Chart (in.) - 11-SGCS-4, 11-SGCS-2, 11-DT-4 & 11-DT-2 Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

4" cc2" cc

% Open Area*

66%57%

Page 50: Light Duty Steel Grating & Aluminum Grating

50 www.OhiOgRaTings.cOm

Wid

th Span

4"7/16"

Wid

th Span

2" 7/16"

Wid

th Span

4"7/16"

Wid

th Span

2" 7/16"

7-DT-4 7-DT-2

STEEL LIGHT DUTY DOVE TAIL

STEEL LIGHT DUTY SWAGED CARBON

7 SPACE PROFILES

7-SGCS-4 7-SGCS-2

4" cc2" cc

55%53%

% Open Area*

4" cc2" cc

52%48%

% Open Area*

Page 51: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 51

7 SPACE LOAD TABLES

Light Duty Dove Tail & Light Duty Swaged Carbon Steel

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

59

73

86

99

111

123

134

145

Wt.*Lbs.

Sq. Ft.

13.73

18.09

22.45

26.81

31.20

35.59

39.92

44.31

Sec. PropSx*, in3

Ix*, in4

0.482

0.181

0.857

0.429

1.339

0.837

1.929

1.446

2.625

2.297

3.429

3.429

4.339

4.882

5.357

6.697

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"1446

0.0991446

0.0792571

0.0742571

0.0604018

0.0604018

0.0485786

0.0505786

0.0407875

0.0437875

0.034102860.037

102860.030

130180.033

130180.026

160720.030

160720.024

9260.15511570.12416460.11620570.0932571

0.09332140.07437030.07846290.06250400.06763000.05365830.05882290.04783320.052104140.041102860.047

128570.037

6430.223

9640.17911430.16817140.13417860.13426790.10725710.11238570.08935000.09652500.07745720.08468570.06757860.07486790.06071430.067107140.054

4720.304

8270.243

8400.22814690.18213120.18222960.14618890.15233060.12225710.13045000.10433590.11458780.09142510.10174390.08152480.09191840.073

3620.398

7230.318

6430.29812860.23810040.23820090.19114460.19928930.15919690.17039380.13625710.14951430.11932550.13265090.10640180.11980360.095

2860.503

6430.402

5080.37711430.302

7940.30217860.24111430.25125710.20115560.21635000.17220320.18945720.15125710.16857860.13431750.15171430.121

2310.620

5790.497

4110.46510290.373

6430.37216070.298

9260.31023140.24812600.26631500.21316460.23341140.18620830.20752070.16625710.18664290.149

3400.563

9350.451

5310.45014610.360

7650.37521040.30010410.32228640.25813600.28237400.22517210.25047340.20021250.22558440.180

2860.671

8570.536

4460.53613390.429

6430.44719290.358

8750.38326250.30611430.33534290.26814460.29843390.23817860.26853570.215

3800.62912360.503

5480.52517800.420

7460.45024230.360

9740.39331650.31512320.35040060.28015220.31549450.252

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft.grating widthD - Deflection in inchesLoads and deflections are theoretical and based on a unit stress of 18,000 psi.

3280.7301148

0.584472

0.6081653

0.487643

0.5212250

0.417840

0.4562939

0.3651063

0.4063719

0.3241312

0.3654592

0.292

2510.9531004

0.762362

0.7951446

0.635492

0.6811969

0.545643

0.5962571

0.477814

0.5303255

0.4241004

0.4764018

0.381

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 5/8 1-1/16 1-1/2 1-15/16 2-3/8 2-13/16 3-1/4 3-11/16 4-1/8 4-9/16 5 5-7/16 5-7/8 6-5/16 6-3/4 No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 3/16" Bars 7-3/16 7-5/8 8-1/16 8-1/2 8-15/16 9-3/8 9-13/16 10-1/4 10-11/16 11-1/8 11-9/16 12 12-7/16 12-7/8 13-5/16 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 3/16" Bars 13-3/4 14-3/16 14-5/8 15-1/16 15-1/2 15-15/16 16-3/8 16-13/16 17-1/4 17-11/16 18-1/8 18-9/16 19 19-7/16 19-7/8 No. of Bars 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 3/16" Bars 20-5/16 20-3/4 21-3/16 21-5/8 22-1/16 22-1/2 22-15/16 23-3/8 23-13/16 24-1/4 24-11/16 25-1/8 25-9/16 26 26-7/16 No. of Bars 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 3/16" Bars 26-7/8 27-5/16 27-3/4 28-3/16 28-5/8 29-1/16 29-1/2 29-15/16 30-3/8 30-13/16 31-1/4 31-11/16 32-1/8 32-9/16 33 No. of Bars 77 78 79 80 81 82 83 3/16" Bars 33-7/16 33-7/8 34-5/16 34-3/4 35-3/16 35-5/8 36-1/16

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in blue.

*Based on 27.429 bars/ft. of grating width. Bearing bars 7/16" c.c. Add .6 lbs./sq. ft. for 7-SGCS-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

Panel Width Chart (in.) - 7-SGCS-4, 7-SGCS-2, 7-DT-4 & 7-DT-2Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

4" cc2" cc

% Open Area*52%48%

Page 52: Light Duty Steel Grating & Aluminum Grating

R SERIES

LIGHT DUTY RIVETED STEEL

GRATING PROFILES AVAILABLE...R SERIES Light Duty Riveted Steel

Z Clips manufactured from stainless steel. Available in 1”, 1-1/2” and 2”

7"

1-1/8"

SPAN

3/4"

7"

SPAN

SPAN

3-1/2"

SPAN

1-1/8"

3/4"

3-1/2"

12-R-3.5

18-R-7

12-R-7

18-R-3.5

52 www.OhiOgRaTings.cOm

Riveted grating is the oldest

style of industrial footwalk, but still

the choice of many engineers due to its

ruggedness, reliability and durability. This grating is

composed of straight bearing bars, and bent connecting bars,

which are joined at their contact points by rivets. Since the

connecting bars extend continuously between bearing bars along

the grating spans, they not only serve to join the bearing bars together,

but also contribute to the load carrying capability and lateral stability

of the grating panels. This added dimension makes riveted grating an

ideal choice where high

strength and stiffness are

required. Slip resistant

surfaces are available.

Page 53: Light Duty Steel Grating & Aluminum Grating

Width Span

3-1/2" 1-1/8"

Width Span

7"

1-1/8"

TOLL FREE: 1-800-321-9800 53

18-R-3.518-R-7

18-R-7 & 18-R-3-1/2

PedSpan,Inches

48

53

59

63

70

72

80

90

99

108

117

Wt.Lbs.

Sq. Ft.

7.80

7.60

9.40

8.70

11.00

9.90

12.50

14.20

16.80

18.30

19.90

Sec. PropSx*, in3

Ix*, in4

0.204

0.077

0.242

0.121

0.363

0.182

0.378

0.236

0.567

0.355

0.545

0.409

0.817

0.613

1.112

0.973

1.453

1.453

1.838

2.068

2.270

2.837

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

Clear Span

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"613

0.099613

0.079726

0.074726

0.06010890.07410890.06011350.06011350.04817020.06017020.04816340.05016340.04024510.05024510.04033360.04333360.03443580.03743580.03055150.03355150.02668090.03068090.024

3920.155

4900.124

4650.116

5810.093

6970.116

8720.093

7260.093

9080.0741089

0.0931362

0.0741046

0.0781307

0.0621569

0.0781961

0.0622135

0.0662669

0.0532789

0.0583486

0.0473530

0.0524412

0.0414358

0.0475447

0.037

2720.223

4090.179

3230.168

4840.134

4840.168

7260.134

5040.134

7570.107

7570.1341135

0.107726

0.1121089

0.0891089

0.1121634

0.0891483

0.0962224

0.0771937

0.0842905

0.0672451

0.0743677

0.0603026

0.0674539

0.054

2000.304

3500.243

2370.228

4150.182

3560.228

6230.183

3710.183

6480.146

5560.183

9730.146

5340.152

9340.122

8000.1521401

0.1221089

0.1301907

0.1041423

0.1142490

0.0911801

0.1013152

0.0812223

0.0913891

0.073

1530.397

3060.317

1820.299

3630.238

2720.298

5450.238

2840.239

5670.191

4260.239

8510.191

4090.199

8170.159

6130.1991226

0.159834

0.1701668

0.1361089

0.1492179

0.1191379

0.1322758

0.1061702

0.1193405

0.095

1210.503

2720.402

1430.376

3230.302

2150.377

4840.302

2240.301

5040.241

3360.301

7570.241

3230.252

7260.201

4840.2511089

0.201659

0.2151483

0.172861

0.1891937

0.1511089

0.1682451

0.1341345

0.1513026

0.121

1740.465

4360.373

1820.373

4540.298

2720.372

6810.298

2610.310

6540.248

3920.310

9810.248

5340.2661335

0.213697

0.2331743

0.186882

0.2072206

0.1661089

0.1862724

0.149

1500.450

4130.361

2250.450

6190.360

2160.375

5940.300

3240.375

8910.300

4410.3221213

0.257576

0.2821585

0.225729

0.2502006

0.200900

0.2252476

0.180

1890.536

5670.429

1820.448

5450.358

2720.446

8170.357

3710.3831112

0.306484

0.3351453

0.268613

0.2981838

0.238757

0.2682270

0.215

1550.525

5030.420

2320.524

7540.419

3160.4501027

0.360413

0.3941341

0.315522

0.3501697

0.280645

0.3152095

0.252

2000.608

7000.486

2720.521

9530.417

3560.45712450.365

4500.40515760.324

5560.36519450.292

2090.683

8340.545

2720.59510890.476

3450.53013790.424

4260.47717020.381

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

Loads and deflections are theoretical and are based on a unit stress of 18,000 psi.

*Based on 11.621 bars/ft. of grating width. Bearing bars 1-1/8" face-to-face, connecting bars riveted 7" c.c. Add .4 lbs./sq. ft. for 18-R-3-1/2. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating.

BarSize,

Inches

3/4 x 3/16

1 x 1/8

1 x 3/16

1-1/4 x 1/8

1-1/4 x 3/16

1-1/2 x 1/8

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-1/2 2-13/16 4-1/8 5-7/16 6-3/4 8-1/16 9-3/8 10-11/16 12 13-5/16 14-5/8 15-15/16 17-1/4 18-9/16 19-7/8

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28

3/16" Bars 21-3/16 22-1/2 23-13/16 25-1/8 26-7/16 27-3/4 29-1/16 30-3/8 31-11/16 33 34-5/16 35-5/8

**Add 1/4" for rivet heads. Deduct 1/16" for each 1/8" bearing bar. Standard panel widths indicated in blue.

Panel Width Chart (in.) - 18-R-7 & 18-R-3-1/2 Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Bars

7" cc

3-1/2" cc

% Open Area*1/8"78%77%

3/16"74%73%

BB Size,Inches

Thru 1-3/42 - 2-1/2

CB Size, in.All Spacings3/4 x 1/81 x 1/8

Page 54: Light Duty Steel Grating & Aluminum Grating

Width Span

7"

3/4"

Width Span

3-1/2" 3/4"

54 www.OhiOgRaTings.cOm

12-R-3-1/212-R-7

12-R-7 & 12-R-3-1/2

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

*Based on 16.269 bars/ft. of grating width. Bearing bars 3/4" face-to-face, connecting bars riveted 7" c.c. Add .4 lbs./sq. ft. for 12-R-3-1/2. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating.

U - Safe uniform load in pounds/ sq.ft.C - Safe concentrated load in pounds/ft. grating widthD - Deflection in inches

**Add 1/4" for rivet heads. Deduct 1/16" for each 1/8" bearing bar. Standard panel widths indicated in blue.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-1/8 2-1/16 3 3-15/16 4-7/8 5-13/16 6-3/4 7-11/16 8-5/8 9-9/16 10-1/2 11-7/16 12-3/8 13-5/16 14-1/4

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 15-3/16 16-1/8 17-1/16 18 18-15/16 19-7/8 20-13/16 21-3/4 22-11/16 23-5/8 24-9/16 25-1/2 26-7/16 27-3/8 28-5/16

No. of Bars 32 33 34 35 36 37 38 39

3/16" Bars 29-1/4 30-3/16 31-1/8 32-1/16 33 33-15/16 34-7/8 35-13/16

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

52

64

76

87

98

108

118

128

Wt.Lbs.

Sq. Ft.

10.70

12.80

15.00

17.10

19.40

22.90

25.00

27.20

Sec. PropSx*, in3

Ix*, in4

0.286

0.107

0.508

0.254

0.794

0.496

1.144

0.858

1.557

1.362

2.034

2.034

2.574

2.896

3.178

3.972

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

858

0.099

858

0.079

1525

0.074

1525

0.060

2383

0.060

2383

0.048

3432

0.050

3432

0.040

4671

0.043

4671

0.034

6101

0.037

6101

0.030

7721

0.033

7721

0.026

9533

0.030

9533

0.024

549

0.155

686

0.124

976

0.116

1220

0.093

1525

0.093

1907

0.075

2196

0.078

2745

0.062

2989

0.066

3737

0.053

3905

0.058

4881

0.047

4942

0.052

6177

0.041

6101

0.047

7626

0.037

381

0.223

572

0.179

678

0.168

1017

0.134

1059

0.134

1589

0.107

1525

0.112

2288

0.089

2076

0.096

3114

0.077

2712

0.084

4067

0.067

3432

0.074

5148

0.060

4237

0.067

6355

0.054

280

0.304

490

0.243

498

0.228

872

0.183

778

0.182

1362

0.146

1121

0.152

1961

0.122

1525

0.130

2669

0.104

1992

0.114

3486

0.091

2521

0.101

4412

0.081

3113

0.091

5447

0.073

214

0.396

429

0.318

381

0.298

763

0.238

596

0.238

1192

0.191

858

0.199

1716

0.159

1168

0.170

2335

0.136

1525

0.149

3050

0.119

1930

0.132

3861

0.106

2383

0.119

4766

0.095

169

0.501

381

0.402

301

0.377

678

0.302

471

0.302

1059

0.241

678

0.251

1525

0.201

923

0.216

2076

0.172

1205

0.189

2712

0.151

1525

0.168

3432

0.134

1883

0.151

4237

0.121

244

0.465

610

0.372

381

0.372

953

0.298

549

0.310

1373

0.248

747

0.266

1868

0.213

976

0.233

2440

0.186

1235

0.207

3089

0.166

1525

0.186

3813

0.149

202

0.564

555

0.451

315

0.450

867

0.361

454

0.376

1248

0.300

618

0.322

1699

0.258

807

0.282

2219

0.225

1021

0.250

2808

0.200

1261

0.225

3466

0.180

265

0.537

794

0.429

381

0.447

1144

0.358

519

0.383

1557

0.306

678

0.335

2034

0.268

858

0.298

2574

0.238

1059

0.268

3178

0.215

226

0.630

733

0.503

325

0.525

1056

0.420

442

0.449

1437

0.360

578

0.394

1877

0.315

731

0.350

2376

0.280

902

0.315

2933

0.252

280

0.608

980

0.486

381

0.521

1335

0.417

498

0.456

1743

0.365

630

0.405

2206

0.324

778

0.365

2724

0.292

214

0.793

858

0.636

292

0.681

1168

0.545

381

0.595

1525

0.477

483

0.530

1930

0.424

596

0.477

2383

0.381

Loads and deflections are theoretical and are based on a unit stress of 18,000 psi.

Panel Width Chart (in.) - 12-R-7 & 12-R-3-1/2 Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Bars7" cc

3-1/2" cc

3/16"65%64%

% Open Area

Page 55: Light Duty Steel Grating & Aluminum Grating

MBG PRESSLOCK

MBG PressLock is the perfect solution for mezzanine

decking, pallet rack decking and shelving for the material

handling market.

Within the manufacturing process, MBG PressLock grating

offers flexibility to the end user based on the spacing and

load requirements. Bar spacings are available in increments

of 7/16" in either direction making it ideal for standard

flooring applications as well as a multitude of architectural

applications such as building facades, ADA walkways,

fencing, sun screens, security barriers and handrail infill

panels. The product is available in carbon steel and can be

provided with various finishes including mill, galvanized

and/or powder coated.

TOLL FREE: 1-800-321-9800 55

LIGHT DUTY MBG PRESSLOCK

GRATING PROFILES AVAILABLE...MBG PRESSLOCK Light Duty Steel

See load tables beginning on page 59.

1-5/16"1-5/16"

Width Span

21-PL-21

Width Span

21-PL-71-5/16"7/16"

Page 56: Light Duty Steel Grating & Aluminum Grating

56 www.OhiOgRaTings.cOm

MBG PressLock...the Smart ChoiceThe cross bar is inserted in the notches of the bearing bar and press locked into a stable structure at a force of 500 tons.

On our computer controlled production lines, the

bearing bars are notched and then locked with the

cross bar at very high pressure.

This particular production method guarantees a

uniform precision mesh size.

The edge of MBG PressLock grating is banded

eitherwithaT-shapedspecialsectionorflatbar.

This process (i.e. where the banding is welded

atrightanglestoandflushwiththegrating

surface) is done with automatic resistance welding.

Optimal maximum panel width: 72"

Maximum panel span:

In practice the length will be predetermined by statistical

requirements and unit weights.

End meshing:

Panel width and span edges must be equal dimensions.

SPECIAL ORDER

PRESSLOCK CONSTRUCTION

Bearing Bar

Cross Bar

LIGHT DUTY MBG PRESSLOCK

Page 57: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 57

ab

a bF

T

7/16

inch

es

1-5/16 inches

21PL7

F

T

21/1

6 in

ches

7/16 inches

7PL21

Bearing BarsIn parallel with one an-other, the bearing bars are theloadcarryingflatbarsset out perpendicularly.

Cross BarsAt right angles to the bear-ing bars, the cross bars connect the bearing bars with one another in that they are pressed at the intersection points.

Banding BarsGrating is usually banded all around byaflatbar, T-shaped section or U-shaped section.

The Mesh Size on Press Lock Grating allows either bearing bars (T) or cross bars (F) to be spread in incrementsof7⁄16".Thisprovides a great deal of flexibilityindesign.The21PL7 is the designation for bearing bar spacing (21⁄16)andcrossbarspacing(7⁄16).

Mesh SpacingMeasurement from center to center (b) for the bearing bars and cross bars.

* Clear distance (a) between the bearing bar and the cross bar.

TECHNICAL DATA

NotchingSpecial notching with extra-high banding in the shelving area.

Angle Collar Angles can be welded on to one or several edges. Angle height should be at least the same as the bearing bar.

The 7PL21 is the designation for bearing bar spacing (7⁄16)andcrossbarspacing(21⁄16).

LIGHT DUTY MBG PRESSLOCK

Page 58: Light Duty Steel Grating & Aluminum Grating

LIGHT DUTY MBG PRESSLOCK

58 www.OhiOgRaTings.cOm

FASTENERS

This is the most popular spacing. (1-5/16" center to center on the bearing bars and 7/16" center to center on the cross bar). Ideal for carts & other rolling equipment.

Both the bearing bars and cross bars are spaced at1-5/16" center to center. This spacing is appropriate when pushcarts & pallet jacks are not used on the mezzanines.

R Clips: A special formed metal fastener available in multiple sizes to fit any job.

R Clip on 21PL21 PressLock available in sizes: 1", 1-3/16", 1-1/4", 1-3/8", 1-1/2", 1-5/8", 1-3/4" and 2".

21PL21

PROFILES

21PL7

PALLET RACK DECKING & SHELVING

PressLock Shelving has maximum shelf visibility for quick inventory checks and up to 84% open area allow-ing for air, light and maximum sprinkler performance in theeventofafire.

Manufactured from carbon steel with high load capacity for strength & stability to avoid deck failure like some wire deck products.

Decking Shelving

Page 59: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 59

21-PL-21 & 21-PL-7

PEDESTRIAN LOAD TABLE ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

BarSize,

Inches

100M

118M

125M

138M

150M

158M

175M

200M

PedSpan,Inches

40

45

47

51

54

56

61

67

Wt.Lbs.

Sq. Ft.

4.31

4.92

5.16

5.61

6.02

6.29

6.88

7.73

Sec. PropSx*, in3

Ix*, in4

0.1556

0.0778

0.2167

0.1278

0.2431

0.1520

0.2963

0.2045

0.3501

0.2626

0.3884

0.3069

0.4765

0.4170

0.6224

0.6224

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

467

0.074

467

0.060

650

0.063

650

0.050

729

0.060

729

0.048

889

0.054

889

0.043

1050

0.050

1050

0.040

1165

0.047

1165

0.038

1430

0.043

1430

0.034

1867

0.037

1867

0.030

299

0.1164

373

0.093

416

0.0986

520

0.079

467

0.0931

584

0.074

569

0.0843

711

0.067

672

0.0776

840

0.062

746

0.0737

932

0.059

915

0.0665

1144

0.053

1195

0.0582

1494

0.047

207

0.168

311

0.134

289

0.142

433

0.114

324

0.134

486

0.107

395

0.121

593

0.097

467

0.112

700

0.089

518

0.106

777

0.085

635

0.096

953

0.077

830

0.084

1245

0.067

152

0.228

267

0.182

212

0.193

371

0.155

238

0.182

417

0.146

290

0.165

508

0.132

343

0.152

600

0.122

381

0.144

666

0.115

467

0.130

817

0.104

610

0.114

1067

0.091

117

0.298

233

0.238

162

0.252

325

0.202

182

0.238

365

0.191

222

0.216

444

0.173

263

0.199

525

0.159

291

0.189

583

0.151

357

0.170

715

0.136

487

0.149

934

0.119

92

0.377

207

0.302

128

0.320

289

0.256

144

0.302

324

0.241

176

0.273

395

0.219

207

0.251

467

0.201

230

0.239

518

0.191

282

0.215

635

0.172

369

0.189

830

0.151

75

0.466

187

0.372

104

0.395

260

0.316

117

0.372

292

0.298

142

0.337

356

0.270

168

0.310

420

0.248

186

0.295

466

0.236

229

0.266

572

0.213

299

0.233

747

0.186

62

0.563

170

0.451

86

0.477

236

0.382

96

0.451

265

0.360

118

0.408

323

0.327

139

0.376

382

0.300

154

0.357

424

0.286

189

0.322

520

0.257

247

0.282

679

0.225

52

0.670

156

0.536

72

0.568

217

0.454

81

0.536

243

0.429

99

0.486

296

0.389

117

0.447

350

0.358

129

0.424

388

0.339

159

0.383

477

0.306

207

0.335

622

0.268

44

0.787

144

0.629

62

0.667

200

0.533

69

0.629

224

0.504

84

0.570

274

0.456

99

0.524

323

0.420

110

0.498

359

0.098

135

0.450

440

0.360

177

0.393

575

0.315

38

0.912

133

0.730

53

0.773

186

0.619

60

0.730

208

0.584

73

0.661

254

0.529

86

0.608

300

0.487

95

0.577

333

0.462

117

0.521

408

0.417

152

0.456

533

0.365

29

1.192

117

0.953

41

1.010

162

0.808

46

0.953

182

0.763

56

0.864

222

0.691

66

0.794

263

0.636

73

0.754

291

0.603

89

0.681

357

0.545

117

0.596

467

0.477

This load chart is based on our medium size bar thickness (12 gauge), and includes bar heights from 1" through 3".Loadsarecalculatedon21PLspacingforthebearingbaror1-5/16centertocenter.Weightbasedonmillfin-ish 21PL21 spacing; if 21PL7 add 2.32 pounds/square foot.

*Calculationsbasedonauniformloadof100pounds/squarefootwithmaximum1/8"deflection;figuredperNAAMMstandards**For Galvanized add 7.5% to weight per square foot. 100M through 200M represents bearing bar height and thickness. Example: 100 = 1" high bar; 125 = 1-1/4"***M(Medium)identifiesbearingbarthicknessof12gauge(.1046in/2.66mm)

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

APPLICATIONS

Page 60: Light Duty Steel Grating & Aluminum Grating

60 www.OhiOgRaTings.cOm

This load chart is based on our standard size bar thickness (14 gauge), and includes bar heights from 1" through 2". Loads are calculated on 21PL spacing for the bearing bars or 1-5/16" center to center. Weight basedonmillfinish21PL21spacing;if21PL7,add1.93poundspersquarefoot.

PEDESTRIAN LOAD TABLE ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

BarSize,

Inches

100S

118S

125S

138S

150S

158S

175S

200S

PedSpan,Inches

36

41

43

46

49

51

55

61

Wt.Lbs.

Sq. Ft.

3.42

3.87

4.05

4.38

4.68

4.89

5.32

5.95

Sec. PropSx*, in3

Ix*, in4

0.1098

0.0549

0.1529

0.0902

0.1716

0.1073

0.2092

0.1443

0.2471

0.1854

0.2742

0.2166

0.3364

0.2943

0.4394

0.4394

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

330

0.074

330

0.060

459

0.063

459

0.050

515

0.060

515

0.048

628

0.054

628

0.043

741

0.050

741

0.040

823

0.047

823

0.038

1009

0.043

1009

0.034

1318

0.037

1318

0.030

211

0.1164

264

0.093

294

0.0986

367

0.079

330

0.0931

412

0.074

402

0.0843

502

0.067

474

0.0776

593

0.062

526

0.0737

658

0.059

646

0.0665

807

0.053

844

0.0582

1054

0.047

146

0.168

220

0.134

204

0.142

306

0.114

229

0.134

343

0.107

279

0.121

418

0.097

330

0.112

494

0.089

366

0.106

548

0.085

449

0.096

673

0.077

586

0.084

879

0.067

108

0.228

188

0.182

150

0.193

262

0.155

168

0.182

294

0.146

205

0.165

359

0.132

242

0.152

424

0.122

269

0.144

470

0.115

330

0.130

577

0.104

430

0.114

753

0.091

82

0.298

165

0.238

115

0.252

229

0.202

129

0.238

257

0.191

157

0.216

314

0.173

185

0.199

371

0.159

206

0.189

411

0.151

252

0.170

505

0.136

330

0.149

659

0.119

65

0.377

146

0.302

91

0.320

204

0.256

102

0.302

229

0.241

124

0.273

279

0.219

146

0.251

330

0.201

162

0.239

366

0.191

199

0.215

449

0.172

260

0.189

586

0.151

53

0.466

132

0.372

73

0.395

184

0.316

82

0.372

206

0.298

100

0.337

251

0.270

119

0.310

297

0.248

132

0.295

329

0.236

161

0.266

404

0.213

211

0.233

527

0.186

44

0.563

120

0.451

61

0.477

167

0.382

68

0.451

187

0.360

83

0.408

228

0.327

98

0.376

270

0.300

109

0.357

299

0.285

133

0.322

367

0.257

174

0.282

479

0.225

37

0.670

110

0.536

51

0.568

153

0.454

57

0.536

172

0.429

70

0.486

209

0.389

82

0.447

247

0.358

91

0.424

274

0.339

112

0.383

336

0.306

146

0.335

439

0.268

31

0.787

101

0.629

43

0.667

141

0.533

49

0.629

158

0.504

59

0.570

193

0.456

70

0.524

228

0.420

78

0.498

253

0.398

96

0.450

311

0.360

125

0.393

406

0.315

27

0.912

94

0.730

37

0.773

131

0.619

42

0.730

147

0.584

51

0.661

179

0.529

61

0.608

212

0.487

67

0.577

235

0.462

82

0.521

288

0.417

108

0.456

377

0.365

21

1.192

82

0.953

29

1.010

115

0.808

32

0.953

129

0.763

39

0.864

157

0.691

46

0.794

185

1.636

51

0.754

206

0.603

63

0.681

252

0.545

82

0.596

330

0.477

*Calculationsbasedonauniformloadof100pounds/squarefootwithmaximum1/8"deflection;figuredperNAAMMstandards**For Galvanized add 7.5% to weight per square foot. 100S through 200S represents bearing bar height and thickness. Example: 100 = 1" high bar; 125 = 1-1/4"***S(Standard)identifiesbearingbarthicknessof14gauge(.0747in/1.905mm)

SOLUTION

21PL7 - PressLock

PROBLEM

1" x 1/8" 19W4 weld forge

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.21-PL-21 & 21-PL-7

Page 61: Light Duty Steel Grating & Aluminum Grating

SGSS SERIES

SWAGED STAINLESS STEEL

GRATING PROFILES AVAILABLE...SGSS SERIES Swaged Stainless Steel

4"

1-3/16"

SPAN

15/16"

SPAN

SPAN

SPAN

11/16"

7/16" 7-SGSS-4

19-SGSS-4

15-SGSS-4

11-SGSS-4

4"

4"

4"

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 19-SGSS-2, 15-SGSS-2, 11-SGSS-2 and 7-SGSS-2

Slip resistant surfaces, including serrated are available.

The swaging process allows the

assembly of bar grating panels by mechanically

locking the cross bars at right angles to the bearing bars at

a maximum of 4" on center. This process provides the clean crisp

lines of a recessed cross bar and eliminates the discoloration inherent

with welded bar grating. By using the most modern technology

available, swaged bar grating allows for a variety of spacings

including close spacings of 7/16" cc between bearing bars which

have been approved by the “Americans with Disabilities Act”.

Stainless steel grating has been the standard industrial footwalk

product for severe corrosive environments and has been a popular

grating choice for many years. OGi manufactures stainless swaged

bar grating from type 304 and 316 stainless steel bar. Stainless steel

grating is used at chemical plants, food processing facilities, oil

and gas producers and is also used in many other commercial and

architectural applications.

TOLL FREE: 1-800-321-9800 61

Page 62: Light Duty Steel Grating & Aluminum Grating

Wid

th

Span

2"1-3/16"

Wid

thSpan

4"1-3/16"

19-SGSS-219-SGSS-4

19 SPACE

Panel Width Chart (in.) - 19-SGSS-4 & 19-SGSS-2 Dimensions Are Out-to-Out of Bearing Bars**

PedSpan,Inches

46

51

56

60

67

69

77

86

95

104

112

Wt.*Lbs.

Sq. Ft.

5.64

4.99

7.19

6.09

8.84

7.19

10.48

11.71

13.78

15.49

17.08

Sec. PropSx*, in3

Ix*, in4

0.178

0.067

0.211

0.105

0.316

0.158

0.329

0.206

0.493

0.308

0.474

0.355

0.711

0.533

0.967

0.846

1.263

1.263

1.599

1.798

1.974

2.467

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"592

0.114592

0.091702

0.086702

0.06910530.08610530.06910960.06910960.05516450.06916450.05515790.05715790.04623680.05723680.04632240.04932240.03942100.04342100.03453290.03853290.03065790.03465790.027

3790.179474

0.143449

0.134561

0.107674

0.134842

0.107702

0.107877

0.08610530.10713160.08610110.08912630.07115160.08918950.07120630.07725790.06126950.06733680.05434100.06042630.04842100.05452630.043

2630.257395

0.206312

0.193468

0.154468

0.193702

0.154487

0.154731

0.123731

0.15410960.123702

0.12910530.10310530.12915790.10314330.11021490.08818710.09628070.07723680.08635530.06929240.07743860.062

1930.349338

0.280229

0.262401

0.210344

0.263601

0.210358

0.210627

0.168537

0.210940

0.168516

0.175902

0.140773

0.17513530.14010530.15018420.12013750.13124060.10517400.11730450.09321480.10537590.084

1480.457296

0.366175

0.342351

0.274263

0.343526

0.274274

0.274548

0.219411

0.274822

0.219395

0.229789

0.183592

0.22911840.183806

0.19616120.15710530.17121050.13713320.15226640.12216450.13732890.110

1390.435312

0.347208

0.434468

0.347217

0.348487

0.278325

0.347731

0.278312

0.289702

0.232468

0.28910530.232637

0.24814330.198832

0.21718710.17410530.19323680.15413000.17429240.139

1680.534421

0.429175

0.428439

0.343263

0.428658

0.343253

0.358632

0.286379

0.357947

0.286516

0.30612890.245674

0.26816840.214853

0.23821320.19110530.21426320.171

1450.519399

0.415217

0.517598

0.415209

0.433574

0.346313

0.432861

0.346426

0.37011720.296557

0.32415310.259705

0.28819380.231870

0.25923920.207

1830.618548

0.494175

0.513526

0.411263

0.514789

0.411358

0.44110750.353468

0.38614030.308592

0.34317760.274731

0.30921930.247

2240.603729

0.483305

0.517992

0.414399

0.45312960.362505

0.40316400.322623

0.36220240.290

2630.600921

0.480344

0.52512030.420435

0.46715230.373537

0.42018800.336

2010.782806

0.627263

0.68510530.549333

0.60913320.488411

0.54816450.439

BarSize,

Inches

3/4 x 3/16

1 x 1/8

1 x 3/16

1-1/4 x 1/8

1-1/4 x 3/16

1-1/2 x 1/8

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

U - Safe uniform load in pounds /sq.ft.C - Safe concentrated load in pounds /ft. grating widthD - Deflection in inches

Loads and deflections are theoretical and based on a unit stress of 20,000 psi.

Bars4" cc2" cc

1/8"83%76%

% Open Area*

3/16"78%72%

*Based on 10.105 bars/ft. of grating width. Bearing bars 1-3/16" c.c. Add .6 lbs./sq. ft. for 19-SGSS-2. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedes-trian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in red.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-3/8 2-9/16 3-3/4 4-15/16 6-1/8 7-5/16 8-1/2 9-11/16 10-7/8 12-1/16 13-1/4 14-7/16 15-5/8 16-13/16 18

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 19-3/16 20-3/8 21-9/16 22-3/4 23-15/16 25-1/8 26-5/16 27-1/2 28-11/16 29-7/8 31-1/16 32-1/4 33-7/16 34-5/8 35-13/16

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

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TOLL FREE: 1-800-321-9800 63

15 SPACE

15-SGSS-215-SGSS-4W

idth

Span

4"15/16"

Wid

th

Span

2"15/16"

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

U - Safe uniform load in pounds /sq.ft.C - Safe concentrated load in pounds /ft. grating widthD - Deflection in inches

Loads and deflections are theoretical and based on a unit stress of 20,000 psi.

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

48

60

71

81

91

101

110

119

Wt.*Lbs.

Sq. Ft.

6.99

8.95

11.03

13.12

14.67

17.29

19.47

21.48

Sec. PropSx*, in3

Ix*, in4

0.225

0.084

0.400

0.200

0.625

0.391

0.900

0.675

1.225

1.072

1.600

1.600

2.025

2.278

2.500

3.125

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

750

0.114

750

0.091

1333

0.086

1333

0.069

2083

0.069

2083

0.055

3000

0.057

3000

0.046

4083

0.049

4083

0.039

5333

0.043

5333

0.034

6750

0.038

6750

0.030

8333

0.034

8333

0.027

480

0.179

600

0.143

853

0.134

1067

0.107

1333

0.107

1667

0.086

1920

0.089

2400

0.071

2613

0.077

3267

0.061

3413

0.067

4267

0.054

4320

0.060

5400

0.048

5333

0.054

6667

0.043

333

0.257

500

0.206

593

0.193

889

0.154

926

0.154

1389

0.123

1333

0.129

2000

0.103

1815

0.110

2722

0.088

2370

0.096

3556

0.077

3000

0.086

4500

0.069

3704

0.077

5556

0.062

245

0.350

429

0.280

435

0.262

762

0.210

680

0.210

1190

0.168

980

0.175

1714

0.140

1333

0.150

2333

0.120

1741

0.131

3048

0.105

2204

0.117

3857

0.093

2721

0.105

4762

0.084

188

0.458

375

0.366

333

0.343

667

0.274

521

0.274

1042

0.219

750

0.229

1500

0.183

1021

0.196

2042

0.157

1333

0.171

2667

0.137

1688

0.152

3375

0.122

2083

0.137

4167

0.110

148

0.578

333

0.462

263

0.433

593

0.347

412

0.348

926

0.278

593

0.289

1333

0.231

807

0.248

1815

0.198

1053

0.217

2370

0.174

1333

0.193

3000

0.154

1646

0.174

3704

0.139

213

0.535

533

0.428

333

0.428

833

0.343

480

0.357

1200

0.286

653

0.306

1633

0.245

853

0.268

2133

0.214

1080

0.238

2700

0.190

1333

0.214

3333

0.171

176

0.647

485

0.519

275

0.518

758

0.415

397

0.432

1091

0.346

540

0.370

1485

0.296

705

0.324

1939

0.259

893

0.288

2455

0.231

1102

0.259

3030

0.207

231

0.616

694

0.493

333

0.514

1000

0.411

454

0.441

1361

0.353

593

0.386

1778

0.309

750

0.343

2250

0.274

926

0.309

2778

0.247

284

0.604

923

0.483

387

0.518

1256

0.414

505

0.453

1641

0.362

639

0.402

2077

0.322

789

0.362

2564

0.290

245

0.700

857

0.560

333

0.599

1167

0.480

435

0.525

1524

0.420

551

0.467

1929

0.373

680

0.420

2381

0.336

255

0.783

1021

0.627

333

0.685

1333

0.548

422

0.610

1688

0.488

521

0.549

2083

0.439

Bars4" cc2" cc

1/8"N/AN/A

% Open Area*

3/16"74%68%

*Based on 12.8 bars/ft. of grating width. Bearing bars 15/16" c.c. Add .6 lbs./sq. ft. for 15-SGSS-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

Panel Width Chart (in.) - 15-SGSS-4 & 15-SGSS-2 Dimensions Are Out-to-Out of Bearing Bars**

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in red.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 1-1/8 2-1/16 3 3-15/16 4-7/8 5-13/16 6-3/4 7-11/16 8-5/8 9-9/16 10-1/2 11-7/16 12-3/8 13-5/16 14-1/4

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 15-3/16 16-1/8 17-1/16 18 18-15/16 19-7/8 20-13/16 21-3/4 22-11/16 23-5/8 24-9/16 25-1/2 26-7/16 27-3/8 28-5/16

No. of Bars 32 33 34 35 36 37 38 39

3/16" Bars 29-1/4 30-3/16 31-1/8 32-1/16 33 33-15/16 34-7/8 35-13/16

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 64: Light Duty Steel Grating & Aluminum Grating

11 SPACE

11-SGSS-211-SGSS-4W

idth Span

4" 11/16"

Wid

th Span

2" 11/16"

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

U - Safe uniform load in pounds/ sq.ft.C - Safe concentrated load in pounds/ ft. grating widthD - Deflection in inches

Loads and deflections are theoretical and are based on a unit stress of 20,000 psi.

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

52

65

77

88

99

109

119

129

Wt.*Lbs.

Sq. Ft.

9.32

11.99

14.83

17.68

19.79

23.37

26.34

29.08

Sec. PropSx*, in3

Ix*, in4

0.307

0.115

0.545

0.273

0.852

0.533

1.227

0.920

1.670

1.462

2.182

2.182

2.761

3.107

3.409

4.261

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

10230.11410230.09118180.08618180.06928410.06928410.05540910.05740910.04655680.04955680.03972730.04372730.03492050.03892050.030113640.034113640.027

6550.179818

0.14311640.13414550.10718180.10722730.08626180.08932730.07135640.07744550.06146550.06758180.05458910.06073640.04872730.05490910.043

4550.257682

0.206808

0.19312120.15412630.15418940.12318180.12927270.10324750.11037120.08832320.09648490.07740910.08661370.06950510.07775760.062

3340.350584

0.280594

0.26310390.210928

0.21016230.16813360.17523380.14018180.15031820.12023750.13141560.10530060.11752600.09337110.10564940.084

2560.458511

0.365455

0.343909

0.274710

0.27414200.21910230.22920460.18313920.19627840.15718180.17136360.13723010.15246020.12228410.13756820.110

2020.578455

0.463359

0.434808

0.347561

0.34712630.278808

0.28918180.23111000.24824750.19814370.21732320.17418180.19340910.15422450.17450510.139

2910.536727

0.428455

0.42911360.343655

0.35716360.286891

0.30622270.24511640.26829090.21414730.23836820.19018180.21445460.171

2400.647661

0.518376

0.51910330.415541

0.43214880.346736

0.37020250.296962

0.32426450.25912170.28833470.23015030.25941320.207

3160.618947

0.494455

0.51513640.412619

0.44118560.353808

0.38624240.30910230.34330680.27412630.30937880.247

2690.724874

0.579387

0.60312590.483527

0.51717130.414689

0.45322380.362871

0.40228320.32210760.36234970.290

3340.70011690.560455

0.60115910.480594

0.52520780.420751

0.46626300.373928

0.42032470.336

2560.91510230.732348

0.78413920.627455

0.68618180.549575

0.60923010.488710

0.54828410.439

Bars4" cc2" cc

1/8"N/AN/A

% Open Area*

3/16"67%62%

*Based on 17.455 bars/ft. of grating width. Bearing bars 11/16" c.c. Add .6 lbs./sq. ft. for 11-SGSS-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

Panel Width Chart (in.) - 11-SGSS-4 & 11-SGSS-2 Dimensions Are Out-to-Out of Bearing Bars**

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in red.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

3/16" Bars 7/8 1-9/16 2-1/4 2-15/16 3-5/8 4-5/16 5 5-11/16 6-3/8 7-1/16 7-3/4 8-7/16 9-1/8 9-13/16 10-1/2

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

3/16" Bars 11-3/16 11-7/8 12-9/16 13-1/4 13-15/16 14-5/8 15-5/16 16 16-11/16 17-3/8 18-1/16 18-3/4 19-7/16 20-1/8 20-13/16 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

3/16" Bars 21-1/2 22-3/16 22-7/8 23-9/16 24-1/4 24-15/16 25-5/8 26-5/16 27 27-11/16 28-3/8 29-1/16 29-3/4 30-7/16 31-1/8

No. of Bars 47 48 49 50 51 52 53

3/16" Bars 31-13/16 32-1/2 33-3/16 33-7/8 34-9/16 35-1/4 35-15/16

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

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Page 65: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 65

7-SGSS-2

Wid

th Span

2" 7/16"

7-SGSS-4

Wid

th Span

4" 7/16"

7 SPACE

BarSize,

Inches

3/4 x 3/16

1 x 3/16

1-1/4 x 3/16

1-1/2 x 3/16

1-3/4 x 3/16

2 x 3/16

2-1/4 x 3/16

2-1/2 x 3/16

PedSpan,Inches

58

73

86

98

110

122

133

144

Wt.*Lbs.

Sq. Ft.

14.30

18.50

22.97

27.44

30.76

36.38

41.05

45.35

Sec. PropSx*, in3

Ix*, in4

0.482

0.181

0.857

0.429

1.339

0.837

1.929

1.446

2.625

2.297

3.429

3.429

4.339

4.882

5.357

6.697

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

ClearSpan

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"16070.11416070.09128570.08628570.06944640.06944640.05564290.05764290.04687500.04987500.039114290.043114290.034144650.038144650.030178570.034178570.027

10290.17912860.14318290.13422860.10728570.10735710.08641140.08951430.07156000.07770000.06173140.06791430.05492570.060115720.048114290.054142860.043

7140.25710710.20612700.19319050.15419840.15429760.12328570.12942860.10338890.11058330.08850790.09676190.07764290.08696430.06979370.077119050.062

5250.350918

0.280933

0.26316330.21014580.21025510.16820990.17536740.14028570.15050000.12037320.13165310.10547230.11782650.09358310.105102040.084

4020.457804

0.366714

0.34314290.27411160.27422320.21916070.22932140.18321880.19643750.15728570.17157140.13736160.15272320.12244640.13789290.110

3170.578714

0.463564

0.43412700.347882

0.34719840.27812700.28928570.23117280.24838890.19822580.21750790.17428570.19364290.15435270.17479370.139

2570.714643

0.572457

0.53611430.429714

0.42817860.34310290.35725710.28614000.30635000.24518290.26845720.21423140.23857860.19028570.21471430.171

3780.64910390.519590

0.51816230.415850

0.43223380.34611570.37031820.29615110.32441560.25919130.28852600.23023610.25964940.207

3170.770952

0.617496

0.61714880.494714

0.51421430.411972

0.44129170.35312700.38638100.30916070.34348220.27419840.30959520.247

2710.907879

0.724423

0.72513740.580609

0.60419780.483828

0.51726920.41410820.45335170.36213690.40244510.32216910.36254950.290

U - Safe uniform load in pounds/sq. ft.C - Safe concentrated load in pounds/ft.grating widthD - Deflection in inchesLoads and deflections are theoretical and based on a unit stress of 20,000 psi.

3640.83912760.672525

0.70018370.560714

0.60025000.480933

0.52532650.42011810.46741330.37314580.42051020.336

2791.09711160.878402

0.91516070.731547

0.78421880.627714

0.68528570.549904

0.61036160.48811160.54944640.439

Bars4" cc2" cc

1/8"N/AN/A

% Open Area*

3/16"52%48%

Panel Width Chart (in.) - 7-SGSS-4 & 7-SGSS-2 Dimensions Are Out-to-Out of Bearing Bars**

**Add 1/4" for extended cross bars. Deduct 1/16" for 1/8" bearing bars. Standard panel widths indicated in red.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 5/8 1-1/16 1-1/2 1-15/16 2-3/8 2-13/16 3-1/4 3-11/16 4-1/8 4-9/16 5 5-7/16 5-7/8 6-5/16 6-3/4 No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 3/16" Bars 7-3/16 7-5/8 8-1/16 8-1/2 8-15/16 9-3/8 9-13/16 10-1/4 10-11/16 11-1/8 11-9/16 12 12-7/16 12-7/8 13-5/16 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 3/16" Bars 13-3/4 14-3/16 14-5/8 15-1/16 15-1/2 15-15/16 16-3/8 16-13/16 17-1/4 17-11/16 18-1/8 18-9/16 19 19-7/16 19-7/8 No. of Bars 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 3/16" Bars 20-5/16 20-3/4 21-3/16 21-5/8 22-1/16 22-1/2 22-15/16 23-3/8 23-13/16 24-1/4 24-11/16 25-1/8 25-9/16 26 26-7/16 No. of Bars 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 3/16" Bars 26-7/8 27-5/16 27-3/4 28-3/16 28-5/8 29-1/16 29-1/2 29-15/16 30-3/8 30-13/16 31-1/4 31-11/16 32-1/8 32-9/16 33 No. of Bars 77 78 79 80 81 82 83 3/16" Bars 33-7/16 33-7/8 34-5/16 34-3/4 35-3/16 35-5/8 36-1/16

*Based on 27.429 bars/ft. of grating width. Bearing bars 7/16" c.c. Add .6 lbs./sq. ft. for 7-SGSS-2. 1/8" bearing bars available by inquiry. Note: Grating for spans to the left of the heavy line have a deflection less than 1/4" for uniform loads of 100 lbs./sq. ft. This is the maximum deflection to afford pedestrian comfort and can be exceeded for other types of load at the discretion of the engineer. The actual Ped (pedestrian) Span under this condition is shown above for each size of grating. When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. 3/4" x 3/16" serrated grating is not available.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 66: Light Duty Steel Grating & Aluminum Grating

“OGI has been manufacturing heavy duty carbon steel

grating since 1971.”

HEAVY DUTY STEEL FEATURES & BENEFITS

This type of grating is used in areas where heavy

static or rolling loads are encountered including

heavy vehicular truck traffic up to H-20 loading.

Calculations for vehicular loadings are based on

AASHTO Standard Specifications for Highway

Bridges and can be calculated by our Engineering

department for your specific applications.

Heavy Duty Welded carbon steel is the most

popular choice where high strength is required. For

those applications requiring an ADA type product,

our Wheels n' Heels¨ product offers the strength

of the standard welded grating along with a

spacing which allows 1/4" opening between

bearing bars which conforms to the provisions

with the “Americans with Disabilities Act” for

pedestrian and wheelchair accessibility. To round

out our heavy duty line, Ohio Gratings offers our

heavy duty riveted product which is the oldest

grating product on the market and continues to be

popular with the engineering community.

Whether the requirement is for stock panels

or custom fabrication “Made Right and Shipped

When Promised”,Ohio Gratings is the choice of

a nationwide base of customers whose primary

criteria are quality and service.

Features & Benefits

66 www.OhiOgRaTings.cOm

Page 67: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 67

HEAVY DUTY STEEL PRODUCTS

Heavy Duty Riveted Steel

Wheels n' Heels® is the first grating product which satisfies both the vehicle loading requirements of AASHTO and the pedestrian comfort

requirements of the “Americans with Disabilities Act”. Made from Grade 36 steel bar, this product will clear span up to 8' under H15 and H20 wheel loads and can be provided in piece sizes up to 3' wide by 20' long. In addition, the close spacing of the bearing bars offers a pedestrian friendly 1/4" or 1/2" opening which allows easy access to wheelchair and high heel traffic. Slip resistant surfaces are also available.

The most traditional of the grating products, is our heavy duty riveted grating. It continues to be the choice of many engineers due to its reliability and durability. Bearing bars are connected with a reticuline bar to form a truss-like grid which is best suited to handle the high impact and lateral forces encountered in bridge deck applications. Riveted grating is widely used in areas which experience the dynamics of partially distributed wheel loadings. Because of its light weight and simple installation as compared to other surfaces, metal riveted bar grating permits resurfacing to handle heavier loads without the need for expensive substructure work. This material can be stocked in inventory by municipalities for quick installation. Slip resistant surfaces are available.

Heavy Duty Welded Steel

Heavy Duty Steel

Welded carbon heavy duty steel grating is the most popular choice where high strength is the primary grating requirement. The main bars are slotted and assembled with cross bars which are welded with the one fillet weld at every joint. Stainless steel can also be provided for those high corrosive applications. This product meets the demanding vehicle loading requirements of AASHTO and is geared to handle heavy rolling loads. Slip resistant surfaces are available. The typical markets for heavy duty steel grating include airfields, highway bridges, ramps, docks, industrial flooring and trenches.

Wheels n’ Heels®

Page 68: Light Duty Steel Grating & Aluminum Grating

M = Bending Moment S = Section Modulus - in3/ft of grating widthI = Moment of Inertia - in4/barE = Modulus of Elasticity (29,000,000 psi)F = Allowable Bending Stress (20,000 psi)L = Simple Clear Span - inchesD = Deflection - inches

HEAVY DUTY STEEL DESIGN CRITERIA

Design Criteria

The following pages show capacities on the basis of vehicular load distribution and concentrated loading per foot of grating width for a given span. Calculations for concentrated load are similar in format to those for Light Duty Steel grating shown on page 40, except F = 20,000 psi. Calculations for vehicular loadings are based on AASHTO Standard Specifications for Highway Bridges and utilize the following formulas:

a = Partial Load Contact Parallel to Span - inchess = Center-to-Center Spacing Between Bearing Bars - in.b = PartialLoadContactDimensionat90˚toSpan-in.b = a + (2s)P = Total Wheel or Partial Load Including Impact - lbs.P

1 = P per bearing bar

P1 = P x (s/b)

Maximum Traffic Conditions

Truck Traffic 32,000 Lb. Axle Load Dual Wheels

Truck Traffic 24,000 Lb. Axle Load Dual Wheels

10,000 Lb. Capacity Lift Truck 14,400 Lb. Vehicle 24,400 Lb. Total Load 85% Drive Axle Load

6,000 Lb. Capacity Lift Truck 9,800 Lb. Vehicle 15,800 Lb. Total Load 85% Drive Axle Load

2,000 Lb. Capacity Lift Truck 4,200 Lb. Vehicle 6,200 Lb. Total Load 85% Drive Axle Load

Wheel Load (lbs.)(1/2 of Axle Load

+ 30% Impact)

20,800

15,600

13,480

8,730

3,425

(Rubber Tires)

(Rubber Tires)

(Rubber Tires)

Loading

H-20

H-15

5 Ton

3 Ton

1 Ton

a

20"

15"

11"

7"

4"

b

20" + (2s)

15" + (2s)

11" + (2s)

7" + (2s)

4" + (2s)

Load Distribution**

NOTES: (1) For continuous spans, use continuity factor = .80. ** (2) This distribution results in larger grating sizes for lighter trucks on shorter spans. Spans shown for H15/H20 reflect the more critical condition. (3) The fork lift wheel loads and load distribution patterns depicted above, generally, and only partially, represent the broad range of rubber-tired lift trucks available. For those applications falling outside of these examples, please contact the factory. (4) Wheeled vehicles with urethane tires should NEVER be used in conjunction with open grid bar grating. (5) HS20 is the same as H20 and HS15 is the same as H15. The “S” stands for semi-trailer. Information of a technical nature contained herein is intended only for evaluation by technically skilled persons, with any use thereof to be at their independent discretion and risk. Such information is reliable when evaluated in the proper manner under conditions as described herein. Ohio Gratings, Inc. shall have no responsibility or liability for results obtained or damages resulting from improper evaluation or use.

•Deflection should be limited to 1/400 span.

Step 1. Determine M:

Step 2. Substituting for M, solve for L:

Step 3. Check D*:

M = FS12

(i) a > L (ii) a < L

PL2

M = 8ab

P(.25L - .125a)M =

b

P1[(2L3) - (a2L) + (a3/4)]D =

96El

68 www.OhiOgRaTings.cOm

Page 69: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 69

W SERIES GRATING PROFILES AVAILABLE...W SERIES Heavy Duty Welded Steel

Welded carbon heavy duty

steel grating is the most popular

choice where high strength is the primary

grating requirement. The main bars are slotted and

assembled with cross bars which are welded with one fillet weld at

every joint. Stainless steel can also be provided for those high

corrosive applications. This product meets the demanding vehicle

loading requirements of AASHTO and is geared to handle heavy

rolling loads. Slip resistant surfaces are available. The typical

applications for our heavy duty steel products include airfield

landing mats and trenches, airplane unloading ramps, highway

bridge decking, sidewalks, concrete reinforcements, vault

covers, ramps, docks, industrial flooring, trenches, off-shore

drilling rigs and paper mills.

All profiles shown below are also available with 2" cross bar centers. Product numbers would be 15-W-2, 19-W-2, 22-W-2, 30-W-2 and 38-W-2.

15-W-4 19-W-4

15/16"

4"

SPAN

1-3/16"

SPAN

4"

1-3/8"

SPAN

4"

1-7/8"

SPAN

4"

2-3/8"

SPAN

4"

22-W-4 30-W-4

38-W-4

HEAVY DUTY WELDED STEEL

Page 70: Light Duty Steel Grating & Aluminum Grating

Width

Span

2"

2-3/8"

Width

Span

4"

2-3/8"

38 SPACE

38-W-238-W-4

BBSize

Thru2-1/2"

3" to 6"

% Open Area*

1/4"82%76%84%80%

Bearing Bar ThicknessCBCtrs4" cc2" cc4" cc2" cc

5/16"80%73%82%78%

3/8"77%71%79%75%

1/2"––

74%71%

BarSize,

Inches

Wt.**Lbs.

Sq. Ft.Sx**, in3

Ft. Width

Maximum Safe Clear Span, Inches-Partially Distributed Load

5.427.576.509.187.579.18

10.798.64

12.409.72

11.8614.0110.7915.6211.8614.5517.2315.4418.6621.8828.3217.5825.1032.6219.7324.0328.3236.9121.8831.5441.2124.0329.4034.7645.5026.1737.9949.8028.3234.7641.2154.09

Section PropertiesIx**, in4

Ft. Width 1 Ton 3 Ton 5 Ton H15/H201 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

0.2110.3160.3290.4930.4740.5920.7110.6450.9670.8421.0531.2631.0661.5991.3161.6451.9741.8952.3692.8423.7902.5793.8695.1583.3694.2115.0536.7374.2636.3958.5275.2646.5797.89510.5276.3699.55312.7387.5809.47411.36915.159

0.1050.1580.2060.3080.3550.4440.5330.5640.8460.8421.0531.2631.1991.7991.6452.0562.4672.8423.5534.2635.6854.5136.7709.0276.7378.42210.10613.4759.59314.38919.18613.15916.44919.73826.31817.51426.27235.02922.73928.42334.10845.477

5771010121412181619232029243035344250

64*4567

81*5973

86*967496969196969696969696969696

5667789912111214131715182120242937263849334148634160805062749660899671889696

6779910111013121315131715182020232735253545313844573855714656668755799664799496

789111012131215141618162018212423273139294050354350634360775162729360859670859696

*Span limited to 1/400 of span = Deflection. **Based on 5.053 bars/ft of grating width. Bearing bars 2-3/8" c.c. When serrated grating is specified, the depth of grating required for a specified load will be 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs./sq. ft. (3/8" Dia.) or 2.55 lbs./sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars are determined based on project applications and bearing bar height.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

70 www.OhiOgRaTings.cOm

Page 71: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 71

Bar SizeInches

1 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

Maximum Safe Concentrated Load*, Lbs. - Clear Span

1407210721933287316039474740430064475613702084207107

106608773

10967131601263315793189472526717193257933438722460280733368744913284204263356847350934386052633

93814041462219121072631316028674298374246805613473871075849731187738422

1052912631168441146217196229241497318716224582994218947284223789823396292403508946787283074245856613336894210750529

7031053109716431580197323702150322328073510421035535330438754836580631778979473

126338597

1289717193112301403716843224571421021317284231754721930263173509021230318434246025267315803789750530

563843877

13151264157918961720257922452808336828434264350943875264505363177579

101076877

10317137558984

1122913475179651136817053227391403717544210532807216984254753396820213252643031740424

469702731

10961053131615801433214918712340280723693553292436564387421152646316842257318598

1146274879358

11229149719473

14211189491169814620175442339314153212292830716844210532526433687

402602627939903

1128135412291842160420062406203030462507313337603610451254137219491273709825641780219625

128328120

12181162421002712531150382005112131181962426314438180462165528874

548822790987

118510751612140317552105177726652193274232903158394847376317429864488597561570188422

112287105

10658142128773

10965131581754510615159222123012633157901894825265

702877

1053956

1433124715601871157923691950243729242807351042105615382157327641499162397486998163169474

1263377999747

11696155969436

141531887111230140361684322458

8601289112314041684142121321755219326322527315937895053343951596877449256156737898356848527

1136970198772

1052714036

8492127371698410107126321515920212

129219381595199423932297287234454594312646906252408451046125816651677752

10336638179759570

127607720

11579154409188

114841378118375

14621828219321062632315842112866429957313743467956147486473771069474584973108772

116977077

10614141538422

105271263216843

2456368549123209401048126416406060908121501362667519

1002660669098

1213172199023

1082814437

355353297106438754836579877353087961

10615631778959474

12633

*Based on 5.053 bars / ft. of grating width. Bearing bars 2-3/8" c.c. Note: When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables. Loads are theoretical and are based on a unit stress of 20,000 psi.

38 SPACE

Panel Width Chart (in.) - 38-W-4 & 38-W-2 Dimensions Are Out-to-Out of Bearing Bars**

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 2-5/8 5 7-3/8 9-3/4 12-1/8 14-1/2 16-7/8 19-1/4 21-5/8 24 26-3/8 28-3/4 31-1/8 33-1/2 35-7/8

5/16" Bars 2-11/16 5-1/16 7-7/16 9-13/16 12-3/16 14-9/16 16-15/16 19-5/16 21-11/16 24-1/16 26-7/16 28-13/16 31-3/16 33-9/16 35-15/16

3/8" Bars 2-3/4 5-1/8 7-1/2 9-7/8 12-1/4 14-5/8 17 19-3/8 21-3/4 24-1/8 26-1/2 28-7/8 31-1/4 33-5/8 36

1/2" Bars 2-7/8 5-1/4 7-5/8 10 12-3/8 14-3/4 17-1/8 19-1/2 21-7/8 24-1/4 26-5/8 29 31-3/8 33-3/4 36-1/8

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"82%76%84%80%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"80%73%82%78%

3/8"77%71%79%75%

1/2"––

74%71%

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 72: Light Duty Steel Grating & Aluminum Grating

Width

Span

2"

1-7/8"

Width

Span

4"

1-7/8"

30-W-230-W-4

30 SPACE

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"79%72%82%77%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"76%70%78%74%

3/8"73%67%75%71%

1/2"––

69%65%

BarSize,

Inches

Wt.**Lbs.

Sq. Ft.Sx**, in3

Ft. Width

Maximum Safe Clear Span, Inches-Partially Distributed Load

6.579.297.93

11.339.29

11.3313.3710.6515.4012.0114.7317.4513.3719.4914.7318.1221.5318.8722.9527.0335.1921.5931.1140.6324.3129.7535.1946.0727.0339.2751.5129.7536.5543.3556.9532.4747.4362.3935.1943.3551.5167.83

Section PropertiesIx**, in4

Ft. Width 1 Ton 3 Ton 5 Ton H15/H201 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

0.2670.4000.4170.6250.6000.7500.9000.8171.2251.0671.3331.6001.3502.0251.6672.0832.5002.4003.0003.6004.8003.2674.9006.5334.2675.3336.4008.5335.4008.10010.8006.6678.33310.00013.3338.06712.10016.1339.60012.00014.40019.200

0.1330.2000.2600.3910.4500.5630.6750.7151.0721.0671.3331.6001.5192.2782.0832.6043.1253.6004.5005.4007.2005.7178.57511.4338.53310.66712.80017.06712.15018.22524.30016.66720.83325.00033.33322.18333.27544.36728.80036.00043.20057.600

6881111131514201822262232273339384756

68*51

75* 86*6682

91*968396969696969696969696969696

566889101013121416142017202423283342304357384756734769925871859669969682969696

68810910121114131517152017202323273140294153364452674464845466789664939675939696

8910121213141417161820182320242726313645334659415058745071

90*6073869671969683969696

*Span limited to 1/400 of span = Deflection. **Based on 6.4 bars/ft of grating width. Bearing bars 1-7/8" c.c.When serrated grating is specified, the depth of grating required for a specified load will be 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs./sq. ft. (3/8" Dia.) or 2.55 lbs./sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars are determined based on project applications and bearing bar height.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

72 www.OhiOgRaTings.cOm

Page 73: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 73

30 SPACE

Bar SizeInches

1 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load*, Lbs. - Clear Span

17802667278041674000500060005447816771138887

106679000

1350011113138871666716000200002400032000217803266743553284473555342667568873600054000

1187177818532778266733334000363154444742592471116000900074099258

111111066713333160002133314520217782903618964237022844437924240003600048000296313703644444592583585353778

89013331390208320002500300027234083355744435333450067505557694383338000

1000012000160001089016333217771422317777213332844318000270003600022223277773333344443268904033353777320004000048000

7121067111216671600200024002179326728453555426736005400444555556667640080009600

128008712

1306717421113791422117067227551440021600288001777922221266673555521512322674302125600320003840051200

593889927

13891333166720001816272223712962355630004500370446295556533366678000

106677260

10889145189482

1185114222189621200018000240001481618518222222962917927268893585121333266673200042667

509762794

11901143142917141556233320322539304825713857317539684762457157146857914362239333

124448128

1015812190162531028615429205711269915872190482539615366230483073018286228572742936571

69510421000125015001362204217782222266722503375277834724167400050006000800054458167

108887112

888810667142229000

13500180001111213888166672222213445201672688816000200002400032000

8891111133312101815158119752370200030002470308637043556444453337111484072599679632179019481

126418000

12000160009877

12345148151975311951179262390114222177782133328444

10891633142317772133180027002223277733333200400048006400435665338711568971118533

113777200

10800144008889

11111133331777710756161332151112800160001920025600

163624552021252530302909363643645818396059397919517264647758

1034365459818

130918081

1010112121161619778

146671955511636145451745523273

1852231427782667333340005333363054447259474159267111948160009000

1200074089259

11111148148963

134441792610667133331600021333

311146676222406450796095812751437714

10286635079369524

126987683

11524153659143

114291371418286

450067509000555669448333

111116723

10083134448000

100001200016000

*Based on 6.4 bars / ft. of grating width. Bearing bars 1-7/8" c.c. Note: When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

Loads are theoretical and are based on a unit stress of 20,000 psi.

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"79%72%82%77%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"76%70%78%74%

3/8"73%67%75%71%

1/2"––

69%65%

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 2-1/8 4 5-7/8 7-3/4 9-5/8 11-1/2 13-3/8 15-1/4 17-1/8 19 20-7/8 22-3/4 24-5/8 26-1/2 28-3/8

5/16" Bars 2-3/16 4-1/16 5-15/16 7-13/16 9-11/16 11-9/16 13-7/16 15-5/16 17-3/16 19-1/16 20-15/16 22-13/16 24-11/16 26-9/16 28-7/16

3/8" Bars 2-1/4 4-1/8 6 7-7/8 9-3/4 11-5/8 13-1/2 15-3/8 17-1/4 19-1/8 21 22-7/8 24-3/4 26-5/8 28-1/2

1/2" Bars 2-3/8 4-1/4 6-1/8 8 9-7/8 11-3/4 13-5/8 15-1/2 17-3/8 19-1/4 21-1/8 23 24-7/8 26-3/4 28-5/8

No. of Bars 17 18 19 20

1/4" Bars 30-1/4 32-1/8 34 35-7/8

5/16" Bars 30-5/16 32-3/16 34-1/16 35-15/16

3/8" Bars 30-3/8 32-1/4 34-1/8 36

1/2" Bars 30-1/2 32-3/8 34-1/4 36-1/8

Panel Width Chart (in.) - 30-W-4 & 30-W-2 Dimensions Are Out-to-Out of Bearing Bars**

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 74: Light Duty Steel Grating & Aluminum Grating

Width

Span

2"

1-3/8"

Width

Span

4"

1-3/8"

22 SPACE

22-W-222-W-4

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"75%68%77%72%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"70%64%72%68%

3/8"66%60%68%64%

1/2"––

60%56%

BarSize,

Inches

Wt.**Lbs.

Sq. Ft.Sx**, in3

Ft. Width

Maximum Safe Clear Span, Inches-Partially Distributed Load

8.5412.2510.4015.0412.2515.0417.8214.1120.5915.9619.6723.3817.8226.1619.6724.3028.9524.8030.3735.9347.0628.5141.5054.4832.2239.6447.0661.8935.9352.6369.3139.6448.9258.1876.7343.3563.7584.1547.0658.1869.3191.57

Section PropertiesIx**, in4

Ft. Width 1 Ton 3 Ton 5 Ton H15/H201 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

0.3640.5450.5680.8520.8181.0231.2271.1141.6701.4551.8182.1821.8412.7612.2732.8413.4093.2734.0914.9096.5454.4546.6828.9095.8187.2738.72711.6367.36311.04514.7279.09111.36313.63618.18111.00016.49921.99913.09116.36319.63626.181

0.1820.2730.3550.5330.6140.7670.9200.9741.4621.4551.8182.1822.0713.1062.8413.5514.2614.9096.1367.3639.8187.79511.69315.59011.63614.54517.45423.27216.56824.85133.13522.72728.40834.09045.45330.24945.37460.49839.27249.08958.90778.543

69913121518162321253026383139464555

64* 74*60

81* 94*78

91*96969696969696969696969696969696

6779911121115141719172420242827334052365369465768

86*5885967188969685969696969696

799111112131316151720182420242827333850355066455464

83*5580966782969680969694969696

911111313151615201821242128242933323844

57*4158

71*516273

87*63

89*967692969690969696969696

*Span limited to 1/400 of span = Deflection. **Based on 8.727 bars/ft of grating width. Bearing bars 1-3/8" c.c.When serrated grating is specified, the depth of grating required for a specified load will be 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs./sq. ft. (3/8" Dia.) or 2.55 lbs./sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars are determined based on project applications and bearing bar height.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

74 www.OhiOgRaTings.cOm

Page 75: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 75

22 SPACE

Bar SizeInches

1 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load*, Lbs. - Clear Span

24273633378756805453682081807427

111339700

1212014547122731840715153189402272721820272733272743633296934454759393387874848758180

1618242225243787363645475453495174226467808096988182

1227110102126271515114547181822181829089197962969839596258583232438787517163272449089

1213181718932840272734104090371355674850606072736137920375779470

113631091013637163632181714847222732969719393242432909038787245433681749090303033787745453

97114531515227221812728327229714453388048485819490973636061757690918728

1090913091174531187717819237571551519395232723102919635294533927224243303013636348483293334399758664349094363552363

809121112621893181822732727247637113233404048494091613650516313757672739091

10909145449898

1484919798129291616219393258581636224544327272020225251303024040224444366644888729091363624363658180

6931038108216231558194923372122318127713463415635075259433054116493623477929350

124678484

1272816970110821385316623221641402521038280511731621644259733463020952314274190324935311683740249869

94714201363170520451857278324253030363730684602378847355682545568188182

109087423

11137148489697

1212214545193931227218404245451515218938227273030218333274983666521818272723272743635

1212151618181650

247421562693323327274090336742095050484960617273969665999899

131998619

1077512929172391090816363218181346816834202012693516296244433259119394242412909038787

1485222719402424290924553681303137884545436454556545872759398909

1187977579697

11636155159817

14727196361212115151181812424114667219992933217455218172618134908

22323347275534444132396749595950793353998099

1079970528816

10578141048925

13388178511101913773165282203813333199992666515868198342380131735

2526315737883637454654547272494974249899646480819697

129298181

12272163631010112626151512020112222183322444314546181812181829090

424263648485554169278311

110827012

10519140268658

10822129871731510476157132095112468155841870124934

61369204

1227375769469

11363151519167

137491833310909136361636321818

Loads are theoretical, and are based on a unit stress of 20,000 psi.

*Based on 8.727 bars / ft. of grating width. Bearing bars 1-3/8" c.c. Note: When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"75%68%77%72%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"70%64%72%68%

3/8"66%60%68%64%

1/2"––

60%56%

Panel Width Chart (in.) - 22-W-4 & 22-W-2 Dimensions Are Out-to-Out of Bearing Bars** No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 1-5/8 3 4-3/8 5-3/4 7-1/8 8-1/2 9-7/8 11-1/4 12-5/8 14 15-3/8 16-3/4 18-1/8 19-1/2 20-7/8

5/16" Bars 1-11/16 3-1/16 4-7/16 5-13/16 7-3/16 8-9/16 9-15/16 11-5/16 12-11/16 14-1/16 15-7/16 16-13/16 18-3/16 19-9/16 20-15/16

3/8" Bars 1-3/4 3-1/8 4-1/2 5-7/8 7-1/4 8-5/8 10 11-3/8 12-3/4 14-1/8 15-1/2 16-7/8 18-1/4 19-5/8 21

1/2" Bars 1-7/8 3-1/4 4-5/8 6 7-3/8 8-3/4 10-1/8 11-1/2 12-7/8 14-1/4 15-5/8 17 18-3/8 19-3/4 21-1/8

No. of Bars 17 18 19 20 21 22 23 24 25 26 27

1/4" Bars 22-1/4 23-5/8 25 26-3/8 27-3/4 29-1/8 30-1/2 31-7/8 33-1/4 34-5/8 36

5/16" Bars 22-5/16 23-11/16 25-1/16 26-7/16 27-13/16 29-3/16 30-9/16 31-15/16 33-5/16 34-11/16 36-1/16

3/8" Bars 22-3/8 23-3/4 25-1/8 26-1/2 27-7/8 29-1/4 30-5/8 32 33-3/8 34-3/4 36-1/8

1/2" Bars 22-1/2 23-7/8 25-1/4 26-5/8 28 29-3/8 30-3/4 32-1/8 33-1/2 34-7/8 36-1/4

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 76: Light Duty Steel Grating & Aluminum Grating

Width

Span

2"

1-3/16"

Width

Span

4"

1-3/16"

19 SPACE

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"72%65%74%70%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"67%61%69%65%

3/8"62%56%64%60%

1/2"––

54%51%

19-W-219-W-4

BarSize,

Inches

Wt.**Lbs.

Sq. Ft.Sx**, in3

Ft. Width

Maximum Safe Clear Span, Inches-Partially Distributed Load

9.7114.0111.8717.2314.0117.2320.4616.1623.6718.3022.6026.8920.4630.1222.6027.9633.3428.3234.7641.2054.0932.6147.6562.6736.9145.5054.0971.2641.2060.5379.8545.5056.2466.9788.4449.7973.4297.0354.0966.9779.85

105.62

Section Properties

Ix**, in4

Ft. Width 1 Ton 3 Ton 5 Ton H15/H201 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

0.4210.6320.6580.9870.9471.1841.4211.2891.9341.6842.1052.5262.1323.1972.6323.2893.9473.7894.7375.6847.5795.1587.73710.3166.7378.42110.10513.4738.52612.78917.05210.52613.15815.78921.05212.73719.10525.47315.15818.94722.73630.315

0.2110.3160.4110.6170.7110.8881.0661.1281.6921.6842.1052.5262.3983.5973.2894.1124.9345.6847.1058.52611.3689.02613.53918.05213.47316.84220.21026.94719.18428.77638.36726.31532.89439.47352.63035.02552.53870.05145.47356.84168.20990.945

791014131619172522283328413442504960

67* 78*66

85*96

85* 95*96969696969696969696969696969696

6881010111312171518211826222731303744574058

75*516375

91*64

94*967896969694969696969696

7991211131414181619221926222731303643553956

72*506172

88*6190967592969689969696969696

911121414161817212023262331273136354249

61*4564

76*5770

80* 92*70

95*968596969696969696969696

*Span limited to 1/400 of span = Deflection. **Based on 10.105 bars/ft of grating width. Bearing bars 1-3/16" c.c.When serrated grating is specified, the depth of grating required for a specified load will be 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs./sq. ft. (3/8" Dia.) or 2.55 lbs./sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars are determined based on project applications and bearing bar height.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

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Page 77: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 77

19 SPACE

Panel Width Chart (in.) - 19-W-4 & 19-W-2 Dimensions Are Out-to-Out of Bearing Bars**

Bar SizeInches

1 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/83 x 1/2

3-1/2 x 1/43-1/2 x 3/83-1/2 x 1/2

4 x 1/44 x 5/164 x 3/84 x 1/2

4-1/2 x 1/44-1/2 x 3/84-1/2 x 1/2

5 x 1/45 x 5/165 x 3/85 x 1/2

5-1/2 x 1/45-1/2 x 3/85-1/2 x 1/2

6 x 1/46 x 5/166 x 3/86 x 1/2

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load*, Lbs. - Clear Span

28074213438765806313789394738593

128931122714033168401421321313175472192726313252603158037893505273438751580

18712809292443874209526263165729859674849356

112279476

1420911698146181754216840210532526233684229243438745849299423742744911598803789356840

1403210721933290315739474737429764475613701784207107

106578773

10963131571263015790189472526317193257903438722457280703368344910284204263056840350874386052630

1123168517552632252531573789343751574491561367365685852570198771

105251010412632151572021113755206322750917965224562694735928227363410445472280693508842104561393396550947

93614041462219321042631315828644298374246785613473871045849730987718420

1052712631168421146217193229241497118713224562994018947284203789323391292403508746782283044245656607336844210450524

802120412531880180422552707245536843208401048114061609050136265751872179023

10827144369825

1473719650128321604019248256631624024360324802005025063300744009924261363904852028872360904330757743

109716451578197323682148322328073508421035535328438754826578631578959473

126328597

1289517193112281403516842224551421021315284201754321930263153508721228318424245525263315783789350525

1403175421051910286524953119374231594736

389948735847561370188421

112287641

11462152839981

1247614970199601263118947252621559419493233913118818870283043773822456280703368344911

1719257922452807336828434263350943855263505263167579

101056877

10316137558983

1122813473179641136817052227361403517544210522806916983254733396420211252633031540420

25843875319039874784459357426890918762529378

125048166

1020712248163311033515502206691275915949191382551815439231583087618373229662755936745

292436544386421052636316842157318597

1146274869357

11228149709473

14210189471169614620175432339114152212282830316842210522526233683

491273699825641680209624

128318120

12180162401002512531150372005012130181952426014436180452165328871

710510658142108772

10965131581754310614159212122812632157891894725263

Loads are theoretical, and are based on a unit stress of 20,000 psi.

*Based on 10.105 bars / ft. of grating width. Bearing bars 1-3/16" c.c. Note: When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"72%65%74%70%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"67%61%69%65%

3/8"62%56%64%60%

1/2"––

54%51%

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 1-7/16 2-5/8 3-13/16 5 6-3/16 7-3/8 8-9/16 9-3/4 10-15/16 12-1/8 13-5/16 14-1/2 15-11/16 16-7/8 18-1/16

5/16" Bars 1-1/2 2-11/16 3-7/8 5-1/16 6-1/4 7-7/16 8-5/8 9-13/16 11 12-3/16 13-3/8 14-9/16 15-3/4 16-15/16 18-1/8

3/8" Bars 1-9/16 2-3/4 3-15/16 5-1/8 6-5/16 7-1/2 8-11/16 9-7/8 11-1/16 12-1/4 13-7/16 14-5/8 15-13/16 17 18-3/16

1/2" Bars 1-11/16 2-7/8 4-1/16 5-1/4 6-7/16 7-5/8 8-13/16 10 11-3/16 12-3/8 13-9/16 14-3/4 15-15/16 17-1/8 18-5/16

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Bars 19-1/4 20-7/16 21-5/8 22-13/16 24 25-3/16 26-3/8 27-9/16 28-3/4 29-15/16 31-1/8 32-5/16 33-1/2 34-11/16 35-7/8

5/16" Bars 19-5/16 20-1/2 21-11/16 22-7/8 24-1/16 25-1/4 26-7/16 27-5/8 28-13/16 30 31-3/16 32-3/8 33-9/16 34-3/4 35-15/16

3/8" Bars 19-3/8 20-9/16 21-3/4 22-15/16 24-1/8 25-5/16 26-1/2 27-11/16 28-7/8 30-1/16 31-1/4 32-7/16 33-5/8 34-13/16 36

1/2" Bars 19-1/2 20-11/16 21-7/8 23-1/16 24-1/4 25-7/16 26-5/8 27-13/16 29 30-3/16 31-3/8 32-9/16 33-3/4 34-15/16 36-1/8

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 78: Light Duty Steel Grating & Aluminum Grating

Width

Span

2"

15/16"

Width

Span

4"

15/16"

15 SPACE

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"66%60%69%64%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"60%55%62%58%

3/8"54%49%56%53%

15-W-4 15-W-2

BarSize,

Inches

Wt.**Lbs.

Sq. Ft.Sx**, in3

Ft. Width

Maximum Safe Clear Span, Inches-Partially Distributed Load

12.01

17.45

14.73

21.53

17.45

21.53

25.61

20.17

29.68

22.89

28.33

33.77

25.61

37.85

28.33

35.12

41.93

35.19

43.36

51.51

40.63

59.68

46.07

56.95

67.83

51.51

76.00

56.95

70.56

84.15

62.39

92.32

67.83

84.15

100.47

Section Properties

Ix**, in4

Ft. Width 1 Ton 3 Ton 5 Ton H15/H20

1 x 1/4

1 x 3/8

1-1/4 x 1/4

1-1/4 x 3/8

1-1/2 x 1/4

1-1/2 x 5/16

1-1/2 x 3/8

1-3/4 x 1/4

1-3/4 x 3/8

2 x 1/4

2 x 5/16

2 x 3/8

2-1/4 x 1/4

2-1/4 x 3/8

2-1/2 x 1/4

2-1/2 x 5/16

2-1/2 x 3/8

3 x 1/4

3 x 5/16

3 x 3/8

3-1/2 x 1/4

3-1/2 x 3/8

4 x 1/4

4 x 5/16

4 x 3/8

4-1/2 x 1/4

4-1/2 x 3/8

5 x 1/4

5 x 5/16

5 x 3/8

5-1/2 x 1/4

5-1/2 x 3/8

6 x 1/4

6 x 5/16

6 x 3/8

0.533

0.800

0.833

1.250

1.200

1.500

1.800

1.633

2.450

2.133

2.667

3.200

2.700

4.050

3.333

4.167

5.000

4.800

6.000

7.200

6.533

9.800

8.533

10.667

12.800

10.800

16.200

13.333

16.667

20.000

16.133

24.200

19.200

24.000

28.800

0.267

0.400

0.521

0.781

0.900

1.125

1.350

1.429

2.144

2.133

2.667

3.200

3.038

4.556

4.167

5.208

6.250

7.200

9.000

10.800

11.433

17.150

17.067

21.333

25.600

24.300

36.450

33.333

41.667

50.000

44.367

66.550

57.600

72.000

86.400

8

11

11

16

15

19

22

20

30

26

32

38

32

47*

40

49

55*

56

66*

73*

75*

92*

92*

96

96

96

96

96

96

96

96

96

96

96

96

7

8

9

11

11

13

15

14

20

17

21

25

21

30

26

31

37

36

44

52

47

69

61

75

87*

76

96

93

96

96

96

96

96

96

96

8

10

10

13

13

15

16

15

21

19

22

25

22

31

26

32

37

36

43

51

47

67

59

73

84*

74

96

90

96

96

96

96

96

96

96

10

13

13

16

16

18

20

19

25

22

26

30

26

36

31

37

43

42

50

59*

54

73*

69

81*

89*

85

96

96

96

96

96

96

96

96

96

*Span limited to 1/400 of span = Deflection. **Based on 12.8 bars/ft of grating width. Bearing bars 15/16" c.c. Note: When serrated grating is specified, the depth of grating required for a speci-fied load will be 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs./sq. ft. (3/8" Dia.) or 2.55 lbs./sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars are determined based on project applications and bearing bar height.

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

78 www.OhiOgRaTings.cOm

Page 79: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 79

15 SPACE

Panel Width Chart (in.) - 15-W-4 & 15-W-2 Dimensions Are Out-to-Out of Bearing Bars**

Bar SizeInches

1 x 1/41 x 3/8

1-1/4 x 1/41-1/4 x 3/81-1/2 x 1/41-1/2 x 5/161-1/2 x 3/81-3/4 x 1/41-3/4 x 3/8

2 x 1/42 x 5/162 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 5/162-1/2 x 3/8

3 x 1/43 x 5/163 x 3/8

3-1/2 x 1/43-1/2 x 3/8

4 x 1/44 x 5/164 x 3/8

4-1/2 x 1/44-1/2 x 3/8

5 x 1/45 x 5/165 x 3/8

5-1/2 x 1/45-1/2 x 3/8

6 x 1/46 x 5/166 x 3/8

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load*, Lbs. - Clear Span

35535333555383338000

100001200010887163331422017780213331800027000222202778033333320004000048000435536533356887

23693556370255565333666780007258

108899480

11853142221200018000148131852022222213332666732000290364355637924474095688948000

17772667277741674000500060005443816771108890

106679000

135001111013890166671600020000240002177732667284433555742667360005400044443555576666753777

1421213322213333320040004800435565335688711285337200

108008888

11112133331280016000192001742126133227552844534133288004320035555444455333343021

1184177818512778266733334000362954444740592771116000900074079260

111111066713333160001451821778189622370428444240003600029629370384444435851537784266753333

101515241587238122862857342931104667406350806095514377146349793795249143

1142913714124441866716253203182438120571308572539631747380953073046095365714571454857

1388208320002500300027224083355544455333450067505555694583338000

1000012000108881633314222177782133318000270002222227778333332688840333320004000048000

177822222667241936303160395147414000600049386173740771118889

106679679

1451912641158031896316000240001975324692296302390135852284443555642667

21773267284435564267360054004444555666676400800096008711

130671137714223

1706714400216001777722223266672151132267256003200038400

327349094040505160615818727387277919

1187910343129301551513091196361616120202242421955529333232732909134909

3703463055565333666780007259

108899481

118521422212000180001481418519222221792626889213332666732000

622293338127

101591219010286154291269815873190481536523048182862285727429

9000135001111113889166671344420167160002000024000

Loads are theoretical and based on a unit stress of 20,000 psi.

BBSize

Thru2-1/2"

3" to6"

% Open Area*

1/4"66%60%69%64%

Bearing Bar ThicknessCBCtrs

4" cc2" cc4" cc2" cc

5/16"60%55%62%58%

3/8"54%49%56%53%

*Based on 12.8 bars / ft. of grating width. Bearing bars 15/16" c.c. Note: When serrated grating is specified, the depth of grating required for a specific load will be 1/4" greater than that shown in these tables.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 1-3/16 2-1/8 3-1/16 4 4-15/16 5-7/8 6-13/16 7-3/4 8-11/16 9-5/8 10-9/16 11-1/2 12-7/16 13-3/8 14-5/16

5/16" Bars 1-1/4 2-3/16 3-1/8 4-1/16 5 5-15/16 6-7/8 7-13/16 8-3/4 9-11/16 10-5/8 11-9/16 12-1/2 13-7/16 14-3/8

3/8" Bars 1-5/16 2-1/4 3-3/16 4-1/8 5-1/16 6 6-15/16 7-7/8 8-13/16 9-3/4 10-11/16 11-5/8 12-9/16 13-1/2 14-7/16

No. of Bars 32 33 34 35 36 37 38 39

1/4" Bars 29-5/16 30-1/4 31-3/16 32-1/8 33-1/16 34 34-15/16 35-7/8

5/16" Bars 29-3/8 30-5/16 31-1/4 32-3/16 33-1/8 34-1/16 35 35-15/16

3/8" Bars 29-7/16 30-3/8 31-5/16 32-1/4 33-3/16 34-1/8 35-1/16 36

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Bars 15-1/4 16-3/16 17-1/8 18-1/16 19 19-15/16 20-7/8 21-13/16 22-3/4 23-11/16 24-5/8 25-9/16 26-1/2 27-7/16 28-3/8

5/16" Bars 15-5/16 16-1/4 17-3/16 18-1/8 19-1/16 20 20-15/16 21-7/8 22-13/16 23-3/4 24-11/16 25-5/8 26-9/16 27-1/2 28-7/16

3/8" Bars 15-3/8 16-5/16 17-1/4 18-3/16 19-1/8 20-1/16 21 21-15/16 22-7/8 23-13/16 24-3/4 25-11/16 26-5/8 27-9/16 28-1/2

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Page 80: Light Duty Steel Grating & Aluminum Grating

80 www.OhiOgRaTings.cOm

GRATING FRAMES

STEEL GRATING FRAMES

Embed frames cast into concrete floors and substructures

serve a multitude of purposes that extend the life of any

project where open flooring is required. Steel frames form

a permanent shield for concrete lead edges and perimeters

which are subject to cracking and chipping when left

unprotected. During construction these rigid frames

expedite forming and provide a welded structure that

assures accuracy in the concrete pour. Frames provide a

uniform bearing surface for all our grating products and

help eliminate the potential for rocking or irregular

elevations experienced when only covers are installed on

poured concrete.

All frames are available in four sided, one piece construc-

tion units and can accommodate any clear opening. Long

lengths can be provided with fabricated corners for field

installation when required. Frames can be provided mill

finished, galvanized or with a powder coat black finish.

All our steel frames are provided with 3/8" x 4" headed

concrete stud anchors welded within 6" of each corner and

at a maximum of 24" on center.

Welded to Angle

1/4" Flat Bar x depth of grating

3-1/4"

Grating Height

3.5" x 3.5" x .25" Angle

3/8" x 4" Weld Stud

Heavy Duty

Welded to Angle

1/4" Flat Bar x depth of grating

1-3/4"

Grating Height

2" x 2" x .25” Angle

3/8" x 4" Weld Stud

Light Duty

Clear Opening (Width)

Cle

ar O

peni

ng

(Spa

n)

Frames are available as one piece welded construction or individual pieces

Page 81: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 81

SHORT & LONG SPAN GRATING PROFILES AVAILABLE...

Heavy Duty Wheels n' Heels®

Wheels n' Heels® is the

first grating product which

satisfies both the vehicle loading

requirements of AASHTO and the pedestrian

comfort requirements of the “Americans with Disabilities Act”.

Made from 1⁄4" thick Grade 36 steel bar, this product will clear

span up to 8' under H15 and H20 wheel loads. In

addition, the close spacing of the bearing bars offers a

pedestrian friendly 1⁄4" or 1⁄2" opening which allows easy

access to wheel chair and high heel traffic. Wheels n' Heels®

products can be provided in piece sizes up to 3' wide by 20'

long. Slip resistant

surfaces are also available.

Check with our Sales

Representatives for specific

piece size limits on each

type and size.

HEAVY DUTY Wheels n' Heels®

SPAN

1/2"Open

4"

4"

SPAN

1/4"Open

8-WH-4* & 15-WH-4*

12-WH-4* & 23-WH-4*

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

Page 82: Light Duty Steel Grating & Aluminum Grating

82 www.OhiOgRaTings.cOm

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

8-WH-4Width

Span

4"

1/2" Ctrs(1/4" Open)

Note: 8-WH-4 is available in Plain Surface only. 2" cross bar centers are not available.

Banding Optional

8 SPACE SHORT SPAN

Note: 2' maximum panel width suggested for ease of handling.

*Based on 24 bars/ft of grating width. Bearing bars 1/2" c.c.

BarSize,

Inches

Wt.*Lbs.

Sq. Ft.Sx*, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed Load

Section PropertiesIx*, in4

Ft. Width

Cross Bar Size, Inches 1 Ton 5 Ton H15/H20

1 x 1/4

1-1/4 x 1/4

1-1/2 x 1/4

1-3/4 x 1/4

2 x 1/4

21.53

26.64

31.73

36.84

41.93

1.000

1.563

2.250

3.063

4.000

0.500

0.977

1.688

2.680

4.000

3/8 Dia.

3/8 Dia.

3/8 Dia.

3/8 Dia.

3/8 Dia.

11

17

23

31

40

3 Ton

9

13

17

22

27

11

14

18

23

29

14

18

22

28

34

24

30

36

42

48

Maximum Manufactured

Spans

Bar Size,Inches

1 x 1/4

1-1/4 x 1/4

1-1/2 x 1/4

1-3/4 x 1/4

2 x 1/4

Maximum Safe Concentrated Load*, Lbs. - ClearSpan

13333

20840

30000

40840

53333

6667

10420

15000

20420

26667

4444

6947

10000

13613

17778

3333

5210

7500

10210

13333

4168

6000

8168

10667

5000

6807

8889

5834

7619 6667

Loads given are theoretical and based on a unit stress of 20,000 psi.

Panel Width Chart (in.) - 8-WH-4 Dimensions Are Out-to-Out of Bearing Bars**

*Based on 24 bars/ft of grating width. Bearing bars 1/2" c.c.

% Open Area*

45%

0'- 6" 1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0"

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 3/4 1-1/4 1-3/4 2-1/4 2-3/4 3-1/4 3-3/4 4-1/4 4-3/4 5-1/4 5-3/4 6-1/4 6-3/4 7-1/4 7-3/4 No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Bars 8-1/4 8-3/4 9-1/4 9-3/4 10-1/4 10-3/4 11-1/4 11-3/4 12-1/4 12-3/4 13-1/4 13-3/4 14-1/4 14-3/4 15-1/4 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

1/4" Bars 15-3/4 16-1/4 16-3/4 17-1/4 17-3/4 18-1/4 18-3/4 19-1/4 19-3/4 20-1/4 20-3/4 21-1/4 21-3/4 22-1/4 22-3/4 No. of Bars 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

1/4" Bars 23-1/4 23-3/4 24-1/4 24-3/4 25-1/4 25-3/4 26-1/4 26-3/4 27-1/4 27-3/4 28-1/4 28-3/4 29-1/4 29-3/4 30-1/4 No. of Bars 62 63 64 65 66 67 68 69 70 71 72

1/4" Bars 30-3/4 31-1/4 31-3/4 32-1/4 32-3/4 33-1/4 33-3/4 34-1/4 34-3/4 35-1/4 35-3/4

Page 83: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 83

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.12 SPACE SHORT SPAN

Width

Span

4"

3/4" Ctrs(1/2" Open)

Note: 12-WH-4 is available in Plain Surface only. 2" cross bar centers are not available.

Banding Optional

12-WH-4

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 1 1-3/4 2-1/2 3-1/4 4 4-3/4 5-1/2 6-1/4 7 7-3/4 8-1/2 9-1/4 10 10-3/4 11-1/2

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1/4" Bars 12-1/4 13 13-3/4 14-1/2 15-1/4 16 16-3/4 17-1/2 18-1/4 19 19-3/4 20-1/2 21-1/4 22 22-3/4 No. of Bars 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

1/4" Bars 23-1/2 24-1/4 25 25-3/4 26-1/2 27-1/4 28 28-3/4 29-1/2 30-1/4 31 31-3/4 32-1/2 33-1/4 34

No. of Bars 47 48 49

1/4" Bars 34-3/4 35-1/2 36-1/4

BarSize,

Inches

1 x 1/4

1-1/4 x 1/4

1-1/2 x 1/4

1-3/4 x 1/4

2 x 1/4

Maximum Safe Concentrated Load*, Lbs. - ClearSpan

8893

13893

20000

27227

35560

4447

6947

10000

13613

17780

2964

4631

6667

9076

11853

2223

3473

5000

6807

8890

2779

4000

5445

7112

3333

4538

5927

3890

5080 4445

Loads given are theoretical and based on a unit stress of 20,000 psi.

BarSize,

Inches

Wt.*Lbs.

Sq. Ft.Sx*, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed Load

Section Properties

Ix*, in4

Ft. Width

Cross Bar Size, Inches 1 Ton 3 Ton 5 Ton H15/H20

1 x 1/4

1-1/4 x 1/4

1-1/2 x 1/4

1-3/4 x 1/4

2 x 1/4

14.73

18.14

21.53

24.94

28.33

0.667

1.042

1.500

2.042

2.667

0.333

0.651

1.125

1.786

2.667

3/8 Dia.

3/8 Dia.

3/8 Dia.

3/8 Dia.

3/8 Dia.

9

13

18

23

30

7

10

13

16

20

9

11

14

18

21

11

14

18

21

26

24

30

36

42

48

Maximum Manufactured

Spans

*Based on 24 bars/ft of grating width. Bearing bars 3/4" c.c.

0'- 6" 1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0"

% Open Area*

60%

*Based on 24 bars/ft of grating width. Bearing bars 3/4" c.c.

Panel Width Chart (in.) - 12-WH-4 Dimensions Are Out-to-Out of Bearing Bars**

Note: 2' maximum panel width suggested for ease of handling.

Page 84: Light Duty Steel Grating & Aluminum Grating

84 www.OhiOgRaTings.cOm

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.15 SPACE LONG SPAN

15-WH-4Width

Span

4"

15/16" Ctrs(BB&FB)

(1/4" Open)

15-WH-4

Width

Span

4"

15/16" Ctrs(BB&FB)

(1/4" Open)

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 1-3/16 2-1/8 3-1/16 4 4-15/16 5-7/8 6-13/16 7-3/4 8-11/16 9-5/8 10-9/16 11-1/2 12-7/16 13-3/8 14-5/16

No. of Bars 17 18 19 20 21 22 23 24 25 26

1/4" Bars 15-1/4 16-3/16 17-1/8 18-1/16 19 19-15/16 20-7/8 21-13/16 22-3/4 23-11/16

BarSize,

Inches

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

Maximum Safe Concentrated Load*, Lbs. - ClearSpan

11110

16000

21777

28443

36000

44443

8888

12800

17421

22755

28800

35555

7407

10667

14518

18962

24000

29629

6349

9143

12444

16253

20571

25396

6400

8711

11377

14400

17777

7919

10343

13091

16161

9481

12000

14814

10286

12698

Loads given are theoretical and based on a unit stress of 20,000 psi.

BarSize,

Inches

Wt.*Lbs.

Sq. Ft.Sx*, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed Load

Section Properties

Ix*, in4

Ft. Width

Cross Bar Size, Inches 1 Ton 3 Ton 5 Ton H15/H20

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

44.81

50.25

55.69

61.13

66.57

72.01

3.333

4.800

6.533

8.533

10.800

13.333

4.167

7.200

11.433

17.067

24.300

33.333

1/4 x 1

1/4 x 1

1/4 x 1

1/4 x 1

1/4 x 1

1/4 x 1

40

56

66

72

84

96

26

36

47

61

76

93

26

36

47

59

74

90

31

42

54

69

84

96

54

60

66

72

84

96

Maximum Manufactured

Spans

*Based on 12.8 bars/ft of grating width. Bearing bars 15/16" c.c. Note: When serrated grating is specified, choose the next larger size. 15-WH-4 must be trim banded. 2" cross bar centers are not available.

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

% Open Area*

51%

*Based on 12.8 bars/ft of grating width. Bearing bars 15/16" c.c. Note: When serrated grating is specified, choose the next larger size

Panel Width Chart (in.) - 15-WH-4 Dimensions Are Out-to-Out of Bearing Bars**

5555

8000

10888

14222

18000

22222

4938

7111

9679

12641

16000

19753 11111

SerratedSurface

PlainSurface

Banding Required for Both Surfaces

Page 85: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 85

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.23 SPACE LONG SPAN

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 1-11/16 3-1/8 4-9/16 6 7-7/16 8-7/8 10-5/16 11-3/4 13-3/16 14-5/8 16-1/16 17-1/2 18-15/16 20-3/8 21-13/16

No. of Bars 17 18 19 20 21 22 23 24 25 26

1/4" Bars 23-1/4 24-11/16 26-1/8 27-9/16 29 30-7/16 31-7/8 33-5/16 34-3/4 36-3/16

BarSize,

Inches

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

Maximum Safe Concentrated Load*, Lbs. - ClearSpan

7247

10437

14203

18550

23480

28987

5797

8349

11363

14840

18784

23189

4831

6958

9469

12367

15653

19324

4141

5964

8116

10600

13417

16564

4175

5681

7420

9392

11595

5165

6745

8538

10541

6183

7827

9662

6709

8282

Loads given are theoretical and based on a unit stress of 20,000 psi.

BarSize,

Inches

Wt.*Lbs.

Sq. Ft.Sx*, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed Load

Section Properties

Ix*, in4

Ft. Width

Cross Bar Size, Inches 1 Ton 3 Ton 5 Ton H15/H20

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

29.67

33.21

36.76

40.31

43.86

47.41

2.174

3.131

4.261

5.565

7.044

8.696

2.717

4.696

7.457

11.131

15.848

21.740

1/4 x 1

1/4 x 1

1/4 x 1

1/4 x 1

1/4 x 1

1/4 x 1

31

43

59

72

84

96

19

27

35

45

56

69

20

26

34

43

53

65

24

31

40

50

61

73

54

60

66

72

84

96

Maximum Manufactured

Spans

*Based on 8.348 bars/ft of grating width. Bearing bars 1-7/16" c.c. Note: When serrated grating is specified, choose the next larger size. 23-WH-4 must be trim banded. 2" cross bar centers are not available.

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

% Open Area*

66%

*Based on 8.348 bars/ft of grating width. Bearing bars 1-7/16" c.c. Note: When serrated grating is specified, choose the next larger size

Panel Width Chart (in.) - 23-WH-4 Dimensions Are Out-to-Out of Bearing Bars**

23-WH-4

Width

Span

4"

1-7/16" Ctrs(BB&FB)

(1/2" Open)

23-WH-4

Width

Span

4"

1-7/16" Ctrs(BB&FB)

(1/2" Open)

Banding Required for Both Surfaces

SerratedSurface

PlainSurface

3623

5218

7102

9275

11740

14493

3221

4639

6313

8244

10436

12883 7247

Page 86: Light Duty Steel Grating & Aluminum Grating

METRO GRATING PROFILES AVAILABLE...Heavy Duty Wheels n' Heels® METRO

The new Wheels n' Heels®

Metro has an even greater

strength to weight ratio, and

much improved aesthetic appeal,

since there are now no welds on the top

surface. In addition, the filler bars and main bearing

bars are both the same thickness thus providing increased

percent open area. Included in this new line are types with

spacing of 1/2" between the bars to meet ADA requirements

as well as types with spacing of 1/4" between bars to accom-

modate High Heel pedestrian use. Wheels n' Heels®

Metro is also bicycle friendly. Also available in Stainless

Steel upon request.

HEAVY DUTY Wheels n' Heels® Metro

28-WH-4* & 42-WH-4*

33-WH-4* & 44-WH-4*

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

4"

SPAN

1/4"Open

SPAN

4"

1/2"Open

86 www.OhiOgRaTings.cOm

A slip resistant surface is recommended to meet ADA guidelines.

Page 87: Light Duty Steel Grating & Aluminum Grating

28-WH-4 Grade 50 Carbon Steel

Widt

h

Span

4"1/4"

Banding Optional

Wheels n' Heels® Metro 28-WH-4 Grade 50 Carbon Steel

*Span limited based on L / 400 max deflection or 96" max span

Main Bearing Bar Size Inches

WeightLbs.

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Cross Bar Size, Inches

1 Ton 5 Ton H15/H20

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

28.17

30.36

32.55

34.74

36.93

41.31

1.929

2.625

3.429

4.339

5.357

7.714

2.893

4.594

6.857

9.763

13.393

23.143

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

40

54

66 *

78 *

92 *

96 *

3 Ton

24

32

40 *

47 *

55 *

72 *

24

31

39

48

57

80

28

36

44

54

64

88

288

288

288

288

288

288

Maximum Manufactured Spans Inches

Loads given are theoretical and based on a unit stress of 27,000 psi.

% Open Area*

52%

Main Bearing Bar Size,Inches

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

8679

11813

15429

19527

24107

34714

6943

9450

12343

15621

19286

27771

5786

7875

10286

13018

16071

23143

4959

6750

8816

11158

13776

19837

4339

5906

7714

9763

12054

17357

5250

6857

8679

10714

15429

6171

7811

9643

13886

7101

8766

12623

6509

8036

11571 9918 8679

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

TOLL FREE: 1-800-321-9800 87

Panel Width Chart (in.) - 28-WH-4 Dimensions Are Out-to-Out of Bearing Bars

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 1-15/16 3-11/16 5-7/16 7-3/16 8-15/16 10-11/16 12-7/16 14-3/16 15-15/16 17-11/16 19-7/16 21-3/16 22-15/16 24-11/16 26-7/16

No. of Bars 17 18 19 20 21 22 23 24 3/16" Bars 28-3/16 29-15/16 31-11/16 33-7/16 35-3/16 36-15/16 38-11/16 40-7/16

This grating meets ANSI/NAAMM MBG - 532, ADA & High Heel spacing & AASHTO H20/H15 standards.

Bicycle Friendly

A slip resistant surface is recommended to meet ADA guidelines.

with 1/4" opening between bearing or filler bars.

AASHTOLift truck Capacity

1-3/4" Bearing Bar Space

Page 88: Light Duty Steel Grating & Aluminum Grating

88 www.OhiOgRaTings.cOm

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Span

1/2"

*Span limited based on L / 400 max deflection or 96" max span

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

7 x 3/16

20.47

22.33

24.19

26.04

27.90

31.62

35.34

1.636

2.227

2.909

3.682

4.545

6.545

8.909

2.455

3.898

5.818

8.284

11.364

19.636

31.182

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

37

50

63 *

75 *

88 *

96 *

96 *

22

29

37

45 *

52 *

69 *

86 *

22

28

35

43

51

72

95

26

32

40

48

57

78

96 *

288

288

288

288

288

288

288

Loads given are theoretical and based on a unit stress of 27,000 psi.

Main Bearing Bar Size Inches

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

7 x 3/16

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

7364

10023

13091

16568

20455

29455

40091

5891

8018

10473

13255

16364

23564

32073

4909

6682

8727

11045

13636

19636

26727

4208

5727

7481

9468

11688

16831

22909

3682

5011

6545

8284

10227

14727

20045

4455

5818

7364

9091

13091

17818

5236

6627

8182

11782

16036

6025

7438

10711

14579

5523

6818

9818

13364

8416

11455

7364

10023

Panel Width Chart (in.) - 33-WH-4 Dimensions Are Out-to-Out of Bearing Bars

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 2-1/4 4-5/16 6-3/8 8-7/16 10-1/2 12-9/16 14-5/8 16-11/16 18-3/4 20-13/16 22-7/8 24-15/16 27 29-1/16 31-1/8

No. of Bars 17 18 19 3/16" Bars 33-3/16 35-1/4 37-5/16

33-WH-4 Grade 50 Carbon Steel

Banding Optional

This grating meets ANSI/NAAMM MBG - 532, ADA spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Wheels n' Heels® Metro 33-WH-4 Grade 50 Carbon Steel

% Open Area*

67%

Bicycle Friendly

with 1/2" opening between bearing or filler bars.

Main Bearing Bar Size Inches

WeightLbs.

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Cross Bar Size, Inches

1 Ton 5 Ton H15/H203 Ton

Maximum Manufactured Spans InchesAASHTOLift truck Capacity

Widt

h

4"

2-1/16" Bearing Bar Space

Page 89: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 89

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*Span limited based on L / 400 max deflection or 96" max span

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

7 x 3/16

25.25

26.71

28.17

29.63

31.09

34.01

36.93

1.286

1.750

2.286

2.893

3.571

5.143

7.000

1.929

3.063

4.571

6.509

8.929

15.429

24.500

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

33

45

58

71 *

83 *

96 *

96 *

20

26

32

40

49

64 *

80 *

19

24

30

37

44

61

81

23

28

34

41

49

66

86

288

288

288

288

288

288

288

Panel Width Chart (in.) - 42-WH-4 Dimensions Are Out-to-Out of Bearing Bars

Loads given are theoretical and based on a unit stress of 27,000 psi.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 2-13/16 5-7/16 8-1/16 10-11/16 13-5/16 15-15/16 18-9/16 21-3/16 23-13/16 26-7/16 29-1/16 31-11/16 34-5/16 36-15/16 39-9/16

Main Bearing Bar Size Inches

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

7 x 3/16

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

5786

7875

10286

13018

16071

23143

31500

4629

6300

8229

10414

12857

18514

25200

3857

5250

6857

8679

10714

15429

21000

3306

4500

5878

7439

9184

13224

18000

2893

3938

5143

6509

8036

11571

15750

3500

4571

5786

7143

10286

14000

4114

5207

6429

9257

12600

4734

5844

8416

11455

4339

5357

7714

10500

6612

9000

5786

7875

Span

1/4"

42-WH-4 Grade 50 Carbon Steel

Banding Optional

This grating meets ANSI/NAAMM MBG - 532, ADA & High Heel spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Wheels n' Heels® Metro 42-WH-4 Grade 50 Carbon Steel

% Open Area*

52%

Bicycle Friendly

with 1/4" opening between bearing or filler bars.

Main Bearing Bar Size Inches

WeightLbs.

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Cross Bar Size, Inches

1 Ton 5 Ton H15/H203 Ton

Maximum Manufactured Spans InchesAASHTOLift truck Capacity

Widt

h

4"

2-5/8" Bearing Bar Space

Page 90: Light Duty Steel Grating & Aluminum Grating

90 www.OhiOgRaTings.cOm

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

*Span limited based on L / 400 max deflection or 96" max span.

18.61

20.00

21.40

22.79

24.19

26.97

29.76

1.227

1.670

2.182

2.761

3.409

4.909

6.682

1.841

2.923

4.364

6.213

8.523

14.727

23.386

33

44

56

70 *

82 *

96 *

96 *

19

25

32

39

47

63 *

79 *

19

24

30

36

43

60

79

22

27

33

40

48

64

84

288

288

288

288

288

288

288

Panel Width Chart (in.) - 44-WH-4 Dimensions Are Out-to-Out of Bearing Bars

Loads given are theoretical and based on a unit stress of 27,000 psi.

No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3/16" Bars 2-15/16 5-11/16 8-7/16 11-3/16 13-15/16 16-11/16 19-7/16 22-3/16 24-15/16 27-11/16 30-7/16 33-3/16 35-15/16 38-11/16

Main Bearing Bar Size Inches

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

7 x 3/16

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

5523

7517

9818

12426

15341

22091

30068

4418

6014

7855

9941

12273

17673

24055

3682

5011

6545

8284

10227

14727

20045

3156

4295

5610

7101

8766

12623

17182

2761

3759

4909

6213

7670

11045

15034

3341

4364

5523

6818

9818

13364

3927

4970

6136

8836

12027

4519

5579

8033

10934

4142

5114

7364

10023

6312

8591

5523

7517

Span

44-WH-4 Grade 50 Carbon Steel

Banding Optional

This grating meets ANSI/NAAMM MBG - 532, ADA spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Main Bearing Bar Size Inches

WeightLbs.

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Cross Bar Size, Inches

1 Ton 5 Ton H15/H203 Ton

Maximum Manufactured Spans InchesAASHTOLift truck Capacity

3 x 3/16

3-1/2 x 3/16

4 x 3/16

4-1/2 x 3/16

5 x 3/16

6 x 3/16

7 x 3/16

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1/2"

Wheels n' Heels® Metro 44-WH-4 Grade 50 Carbon Steel

% Open Area*

67%

Bicycle Friendly

with 1/2" opening between bearing or filler bars.

Widt

h

4"

2-3/4" Bearing Bar Space

Page 91: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 91

InVent GRATING PROFILES AVAILABLE...Heavy Duty Wheels n' Heels® InVent

The Wheels n' Heels®

InVent is the newest

addition to the

Wheels n' Heels® family of

grate products. This product type offers the

same high strength to weight ratio, excellent appearance

and compliance with AASHTO and ADA and High Heel re-

quirements as the Metro type along with being bicycle friendly.

The major difference with the InVent style is that the main

support bearing bars are hidden under the top surface bars and

run in the direction perpendicular to the top surface bars. This

feature allows OGi to offer you the most flexibility in product

types to fit the grating supports of your project. Also available

in Stainless Steel upon request.

HEAVY DUTY Wheels n' Heels® InVent

64-7-WH-63 3/16" *

*Note: Conforms with the spacing requirements of ADA (July 1991) when installed with the elongated opening perpendicular to the dominant direction of travel. See ADA Guidelines

4"

SURFACE BAR SPAN

1/4"Open

BE

AR

ING

B

AR

SP

AN

5/16"Open

4"

SURFACE BAR SPAN

BE

AR

ING

B

AR

SP

AN

1/2"Open

SURFACE BAR SPAN

BE

AR

ING

B

AR

SP

AN

4"

64-7-WH-63 1/8" *

64-10-WH-60 1/8"* & 64-11-WH-66 3/16"*A slip resistant surface is recommended to meet ADA guidelines.

Page 92: Light Duty Steel Grating & Aluminum Grating

92 www.OhiOgRaTings.cOm

*Span limited based on L / 400 max deflection or 96" max span.

Main Bearing Bar

Inches Grade 50

WeightLbs./

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Top Surface Bar Size, Inches

1 Ton 5 Ton H15/H20

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

16.69

17.97

19.24

20.52

21.80

23.08

24.36

25.63

26.91

28.19

30.75

0.281

0.500

0.781

1.125

1.531

2.000

2.531

3.125

3.781

4.500

6.125

0.211

0.500

0.977

1.688

2.680

4.000

5.695

7.813

10.398

13.500

21.438

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

11

18

27

37

50

63 *

76 *

89 *

96 *

96 *

96 *

3 Ton

8

11

16

21

27

34

43

50 *

58 *

66 *

83 *

9

12

15

20

25

31

38

45

53

63

83

11

14

18

22

28

34

41

48

56

65

84

288

288

288

288

288

288

288

288

288

288

288

Maximum Manufactured

Span Top Surface Bars

Inches

Main Bearing

Bar Inches

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

1266

2250

3516

5063

6891

9000

11391

14063

17016

20250

27563

1800

2813

4050

5513

7200

9113

11250

13613

16200

22050

2344

3375

4594

6000

7594

9375

11344

13500

18375

2893

3938

5143

6509

8036

9723

11571

15750

2531

3445

4500

5695

7031

8508

10125

13781

3063

4000

5063

6250

7563

9000

12250

3600

4556

5625

6806

8100

11025

4142

5114

6188

7364

10023

3797

4688

5672

6750

9188

4862

5786

7875

5063

6891

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

Size, Overall Grating DepthInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

SizeInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

64-7-WH-63 1/8" Grade 50 Carbon Steel

Banding Optional

This grating meets ANSI/ NAAMM MBG - 532, ADA & High heel spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Wheels n' Heels® InVent 64-7-WH-63 1/8" Grade 50 Carbon Steel

% Open Area*

66%

Bicycle Friendly

with 5/16" opening between bearing or filler bars.

Lift Truck Capacity AASHTO

5/16"4" Bearing Bar Space

Top Surface Span

Main Bearing Bar Span

Loads given are theoretical and based on a unit stress of 27,000 psi.

Main bearing bars are concealed below the swaged panel.

Overall Grating Depth

Page 93: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 93

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

*Span limited based on L / 400 max deflection or 96" max span.

22.85

24.13

25.41

26.69

27.97

29.24

30.52

31.80

33.08

34.36

36.91

0.281

0.500

0.781

1.125

1.531

2.000

2.531

3.125

3.781

4.500

6.125

0.211

0.500

0.977

1.688

2.680

4.000

5.695

7.813

10.398

13.500

21.438

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

11

18

27

37

50

63 *

76 *

89 *

96 *

96 *

96 *

8

11

16

21

27

34

43

50 *

58 *

66 *

83 *

9

12

15

20

25

31

38

45

53

63

83

11

14

18

22

28

34

41

48

56

65

84

288

288

288

288

288

288

288

288

288

288

288

Main Bearing

Bar Inches

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

1266

2250

3516

5063

6891

9000

11391

14063

17016

20250

27563

1800

2813

4050

5513

7200

9113

11250

13613

16200

22050

2344

3375

4594

6000

7594

9375

11344

13500

18375

2893

3938

5143

6509

8036

9723

11571

15750

2531

3445

4500

5695

7031

8508

10125

13781

3063

4000

5063

6250

7563

9000

12250

3600

4556

5625

6806

8100

11025

4142

5114

6188

7364

10023

3797

4688

5672

6750

9188

4862

5786

7875

5063

6891

SizeInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

Banding Optional

This grating meets ANSI/ NAAMM MBG - 532, ADA & High heel spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Wheels n' Heels® InVent 64-7-WH-63 3/16" Grade 50 Carbon Steel

% Open Area*

52%

Bicycle Friendly

with 1/4" opening between bearing or filler bars.

Main Bearing Bar

Inches Grade 50

WeightLbs./

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Top Surface Bar Size, Inches

1 Ton 5 Ton H15/H20

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

3 Ton

Maximum Manufactured

Span Top Surface Bars

Inches

Size, Overall Grating DepthInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

Lift Truck Capacity AASHTO

Loads given are theoretical and based on a unit stress of 27,000 psi.

64-7-WH-63 3/16" Grade 50 Carbon Steel

1/4"4" Bearing Bar Space

Top Surface Span

Main Bearing Bar Span

Main bearing bars are concealed below the swaged panel.

Overall Grating Depth

Page 94: Light Duty Steel Grating & Aluminum Grating

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Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

*Span limited based on L / 400 max deflection or 96" max span.

13.21

14.49

15.77

17.05

18.33

19.60

20.88

22.16

23.44

24.72

27.27

0.281

0.500

0.781

1.125

1.531

2.000

2.531

3.125

3.781

4.500

6.125

0.211

0.500

0.977

1.688

2.680

4.000

5.695

7.813

10.398

13.500

21.438

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

1 x 1/8

11

18

27

37

50

63 *

76 *

89 *

96 *

96 *

96 *

8

11

16

21

27

34

43

50 *

58 *

66 *

83 *

9

12

15

20

25

31

38

45

53

63

83

11

14

18

22

28

34

41

48

56

65

84

288

288

288

288

288

288

288

288

288

288

288

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

1266

2250

3516

5063

6891

9000

11391

14063

17016

20250

27563

1800

2813

4050

5513

7200

9113

11250

13613

16200

22050

2344

3375

4594

6000

7594

9375

11344

13500

18375

2893

3938

5143

6509

8036

9723

11571

15750

2531

3445

4500

5695

7031

8508

10125

13781

3063

4000

5063

6250

7563

9000

12250

3600

4556

5625

6806

8100

11025

4142

5114

6188

7364

10023

3797

4688

5672

6750

9188

4862

5786

7875

5063

6891

64-10-WH-60 1/8" Grade 50 Carbon Steel

Banding Optional

This grating meets ANSI/ NAAMM MBG - 532, ADA spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Main Bearing Bar

Inches Grade 50

WeightLbs./

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Top Surface Bar Size, Inches

1 Ton 5 Ton H15/H20

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

3 Ton

Maximum Manufactured

Span Top Surface Bars

Inches

Size, Overall Grating DepthInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

Lift Truck Capacity AASHTO

Wheels n' Heels® InVent 64-10-WH-60 1/8" Grade 50 Carbon Steel

% Open Area*

76%

Bicycle Friendly

with 1/2" opening between bearing or filler bars.Main Bearing

Bar Span

1/2"

Top Surface Span

Main Bearing

Bar Inches

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

SizeInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

Loads given are theoretical and based on a unit stress of 27,000 psi.

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

4" Bearing Bar Space

Main bearing bars are concealed below the swaged panel.

Overall Grating Depth

Page 95: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 95

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

*Span limited based on L / 400 max deflection or 96" max span.

16.44

17.71

18.99

20.27

21.55

22.83

24.10

25.38

26.66

27.94

30.49

0.281

0.500

0.781

1.125

1.531

2.000

2.531

3.125

3.781

4.500

6.125

0.211

0.500

0.977

1.688

2.680

4.000

5.695

7.813

10.398

13.500

21.438

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

1 x 3/16

11

18

27

37

50

63 *

76 *

89 *

96 *

96 *

96 *

8

11

16

21

27

34

43

50 *

58 *

66 *

83 *

9

12

15

20

25

31

38

45

53

63

83

11

14

18

22

28

34

41

48

56

65

84

288

288

288

288

288

288

288

288

288

288

288

2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 7'- 0" 8'- 0"

1266

2250

3516

5063

6891

9000

11391

14063

17016

20250

27563

1800

2813

4050

5513

7200

9113

11250

13613

16200

22050

2344

3375

4594

6000

7594

9375

11344

13500

18375

2893

3938

5143

6509

8036

9723

11571

15750

2531

3445

4500

5695

7031

8508

10125

13781

3063

4000

5063

6250

7563

9000

12250

3600

4556

5625

6806

8100

11025

4142

5114

6188

7364

10023

3797

4688

5672

6750

9188

4862

5786

7875

5063

6891

64-11-WH-66 3/16" Grade 50 Carbon Steel

Banding Optional

This grating meets ANSI/ NAAMM MBG - 532, ADA spacing & AASHTO H20/H15 standards.

A slip resistant surface is recommended to meet ADA guidelines.

Loads given are theoretical and based on a unit stress of 27,000 psi.

Main Bearing

Bar Inches

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

SizeInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

Maximum Safe Concentrated Load, Lbs./Ft. Width - at ClearSpan

Wheels n' Heels® InVent 64-11-WH-66 3/16" Grade 50 Carbon Steel

% Open Area*

68%

Bicycle Friendly

with 1/2" opening between bearing or filler bars.

1/2"

Top Surface Span

Main Bearing Bar Span

Main Bearing Bar

Inches Grade 50

WeightLbs./

Sq. Ft. Sx, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed LoadSection Properties

Ix, in4

Ft. Width

Top Surface Bar Size, Inches

1 Ton 5 Ton H15/H20

1-1/2 x 1/4

2 x 1/4

2-1/2 x 1/4

3 x 1/4

3-1/2 x 1/4

4 x 1/4

4-1/2 x 1/4

5 x 1/4

5-1/2 x 1/4

6 x 1/4

7 x 1/4

3 Ton

Maximum Manufactured

Span Top Surface Bars

Inches

Size, Overall Grating DepthInches

2-1/2

3

3-1/2

4

4-1/2

5

5-1/2

6

6-1/2

7

8

Lift Truck Capacity AASHTO

Overall Grating Depth

4" Bearing Bar Space

Main bearing bars are concealed below the swaged panel.

Page 96: Light Duty Steel Grating & Aluminum Grating

96 www.OhiOgRaTings.cOm

R SERIES GRATING PROFILES AVAILABLE...R Series Heavy Duty Riveted Steel

Heavy duty riveted grating

is the oldest style of industrial

grating, but still the choice of many

engineers due to its ruggedness, reliability

and durability. This grating is composed of straight bearing

bars and bent connecting bars which are joined at their contact

points by rivets. Since the connecting bars extend continuously

between bearing bars along the grating spans, they not only

serve to join the bearing bars together, but also contribute to the

load carrying capability and lateral stability of the grating

panels. This added dimension makes heavy duty riveted

grating an ideal choice where high strength and stiffness are

required. These products are ideal for vehicle bridge decks.

Slip resistant surfaces are available.

HEAVY DUTY RIVETED STEEL

*Note: That riveted grating marking indicates space between bearing bars.

37-R-5

5"

*2-5/16"

SPAN

Serrated surface also available. * Other bridge deck configurations are available. Please call for details.

Page 97: Light Duty Steel Grating & Aluminum Grating

TOLL FREE: 1-800-321-9800 97

37-R-537-R-5Width

Span 2-5/16"

5" Width

Span 2-5/16"

5"

SerratedSurface

PlainSurface

37 SPACE

BarSize,

Inches

Wt.*Lbs.

Sq. Ft.Sx*, in3

Ft. Width

Maximum Safe ClearSpan, Inches-Partially Distributed Load

14.6317.9115.6819.4117.0220.8419.2723.9621.5227.0923.7830.2126.0333.3428.2836.46

Section Properties

Ix*, in4

Ft. Width

Cross Bar Size,Inches 1 Ton 3 Ton 5 Ton H15/H20

2 x 1/42 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 3/8

3 x 1/43 x 3/8

3-1/2 x 1/43-1/2 x 3/8

4 x 1/44 x 3/8

4-1/2 x 1/44-1/2 x 3/8

5 x 1/45 x 3/8

0.9911.3191.1851.6061.4221.9462.0062.7692.7233.7643.5604.9234.5136.2385.5777.705

1.0801.4091.4821.9571.9992.6573.4204.5685.4277.2528.097

10.81811.50815.37215.73521.021

1-1/2 x 3/161-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16 1-1/2 x 3/16

19252230263737514965637474838392

12161418162222292838364944615474

13161518172121282736334541554967

16191721202425313140385046605472

*Based on approximately 4.5 bars/ft of grating width. Bearing bars 2-5/16" face-to-face.

Bar Size,Inches

2 x 1/42 x 3/8

2-1/4 x 1/42-1/4 x 3/82-1/2 x 1/42-1/2 x 3/8

3 x 1/43 x 3/8

3-1/2 x 1/43-1/2 x 3/8

4 x 1/44 x 3/8

4-1/2 x 1/44-1/2 x 3/8

5 x 1/45 x 3/8

Maximum Safe Concentrated Load*, Lbs. - ClearSpan

6607879279031070694811297413373184571815125096237353282130087415873718151366

4404586252687137632186498916

123041210116731158232188020058277242478734244

330343963951535347416487668792289076

12548118671641015044207931859025683

264335173161428237935190534973837261

100389494

1312812035166351487220546

22022931263435693160432544586152605083657912

1094010029138621239417122

1888251222583059270937073821527351867170678193778596

118821062314676

1652219819762677237032443343461445386274593482057522

103979295

12842

146819541756237921072883297241014034557752747293668692418262

11415

132117581581214118962595267536913630501947476564601783177436

10273

1201159914371947172423592432335633004563431559675470756167609339

*Based on Bearing bars/ Ft of Width = No. of Connecting bars/ Ft of Width = 4.683 for b =1/4" & Based on Bearing bars/ Ft of Width = No. of Connecting bars/ Ft of Width = 4.465 for b = 3/8" Allowable Fiber Stress = 20,000 psi

**Add 3/8" for rivet heads.

1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 6'- 6" 7'- 0" 8'- 0"

3/8"78%

1/4"82%

% Open Area*

Panel Width Chart (in.) - 37-R-5 Dimensions Are Out-to-Out of Bearing Bars** No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/4" Bars 2-13/16 5-3/8 7-15/16 10-1/2 13-1/16 15-5/8 18-3/16 20-3/4 23-5/16 25-7/8 28-7/16 31 33-9/16 36-1/8 38-11/16

3/8" Bars 3-1/16 5-3/4 8-7/16 11-1/8 13-13/16 16-1/2 19-3/16 21-7/8 24-9/16 27-1/4 29-15/16 32-5/8 35-5/16 38 40-11/16

Visit http://www.ohiogratings.com/prod_specs.html for full product specifications.

1101146513171784158021622229307630254183395654705015693161978561

944125611291529135418531910263725933585339146894298594153127338

8261099988

1338118516221672230722693137296741033761519846486421

1016135312161647145919962057283927933861365150494629639857207902

Page 98: Light Duty Steel Grating & Aluminum Grating

Note: For ADA compliant spacings, the lug will typically be installed at the top. Tack welding of grating in the field (by others) is also a positive method for anchoring all permanently installed grating.

Anchor blocks of 1/4" or 3/16" thick aluminum or steel may be shop welded by the grating manufacturer and used to fasten permanent or removable grating panels. Anchor blocks are recessed thus offering a trip-free surface. 19-SG-4 11-SG-4 7-SG-4

For close-mesh aluminum grating (7/16") bearing bar centers, a countersunk land may be drilled by the grating manufacturer for use with a 1/4" dia. TEK screw.

A special C-channel frame fastener system used in conjunction with welded anchor blocks between bearing bars. The fabricated frame is held in place by TEK screws that are attached to the anchor blocks. Recommended spacing is between 12" and 16" O.C.”

A special friction fastener available in stainless steel and galvanized steel used in conjunction with bar grating and embedded grating frames.

A plank lug inserted then tack welded between flanges, can serve as an ideal anchor block for plank grating.

The most versatile clip anchor available is the Z-Clip. They are especially helpful in holding down riveted grating. Z-Clips are manufactured from stainless steel and are available in 1" (1" & 1-1/4" grating), 1-1/2" (1-1/2" & 1-3/4" grating), and 2" (2", 2-1/4" & 2-1/2" grating) with a pre-punched hole to accept a 1/4" bolt or TEK screw.

A special bent-clip type fastener for removable bar grating panels, available in aluminum, stainless steel and galvanized steel.

ANCHORING DEVICES

Saddle Clip

Note: Cross bars may need to be snipped in the field to facilitate placement of saddle clips.

Channel Frame

Grating Clamp

Note: Cross bars may need to be snipped in the field to facilitate placement of grating clamps.

Countersunk Land

Note: Available for aluminum grating and steel.

Lug

Z-Clip

Anchor Block

98 www.OhiOgRaTings.cOm

Page 99: Light Duty Steel Grating & Aluminum Grating

STANDARD PRACTICES

Quotations shall be offered on the basis of unit price per square foot (in rectangular sections) and per tread. Plans submitted for bidding shall be fully dimensioned and shall provide the complete product description, including bar spacing, span direction, cutout locations, anchorage devices, and finish required.

A partial list of those items not included in unit price quotations, and which shall be treated as unit price extras, is as follows: straight and circular cutting and banding, toe plates, support plates or angles, hinges, lift handles, locking devices, anchors, hole drilling or punching, grinding of welds, sandblasting, deburring and special bundling.

The following information has been excerpted

from the NAAMM Metal Bar Grating Manual and

represents those practices which are generally

accepted to be standard in the metal bar

grating industry.

Quotations

Extras

The Buyer is expected to furnish a set of construction drawings and specifications of current issue showing the layout of supports and floor openings correctly dimen-sioned, together with the sizes and types of grating and treads required. The Seller shall submit to the Buyer three (3) prints or one reproducible paper copy of detailed draw-ings in outline form for the latter’s approval or desired changes. The Buyer shall return one copy marked with approval or desired changes. Should changes be required which involve work not called for in the original plans and specifications, the Seller shall have the right to charge extra for the engineering work required to make such changes. After all necessary corrections and/or changes are made, the drawings shall be resubmitted to the Buyer for his final approval. The Seller shall not proceed with any shop work until drawings are finally approved.

Drawings & Specifications

If requested, the Seller shall furnish to the Buyer, a maximum of four sets of prints or one reproducible paper copy of all installation drawings.

Quantity measurements for gratings ordered to specific dimensions without drawings, shall be based on span times width of each panel, with no deduction made for cutouts. Final calculated grating quantities supplied from drawings shall be on the basis of gross area measured center-to- center of supports, or back-to-back of supporting angles or channels, or overall dimensions of grating, whichever is larger, with no deduction for clearances. Measurement of cuts shall be on the basis of a minimum of one lineal foot per cut panel. Any cut in excess of one lineal foot shall be measured to the next higher lineal foot. Measurement of banding, toe plates and nosings shall be on the same basis as that of cuts.

Installation Drawings

Quantity Measurements

Changes in ScopeIf at any time during the course of the work, the Buyer orders changes made which require materials and/or labor not called for in the original bidding plans, the cost of making such changes shall be paid by the Buyer at a price to be agreed upon.

Field WorkThe Seller shall not be responsible for taking actual measurements of construction work in the field, nor for erection or installation of the grating.

BackchargesUpon discovery of unsatisfactory material, the Buyer shall immediately notify the Seller, who will initiate an investiga-tion into the complaint. The Seller shall be given the opportunity to inspect the material PRIOR TO ANY CORRECTIVE WORK BEING DONE. The Seller is re-sponsible for providing grating in accordance with approved drawings and specifications. The Seller is not responsible for field changes, drawing changes not received and approved by Seller prior to grating fabrication, improper fabrication and/or erection of supporting members. If the investiga-tion and inspection confirm errors in grating fabrication, the Seller agrees to repair and/or replace defective material at no additional charge to Buyer.

ClaimsAll claims are handled independently of all initial orders or invoices.

TOLL FREE: 1-800-321-9800 99

Page 100: Light Duty Steel Grating & Aluminum Grating

SPECIFICATION INFORMATION

Aluminum Flush Top,Aluminum Rectangular Bar,Aluminum I-Bar,Lite Bar,Aluminum Dove Tail,Aluminum Riveted

Aluminum Plank,Aluminum Grating Frames

Heavy Duty Welded Steel,Heavy Duty Riveted Steel

Light Duty Welded Carbon Steel,Light Duty Dove Tail Carbon Steel,Light Duty Swaged Carbon Steel,Light Duty Swaged Stainless Steel,Light Duty Riveted Carbon Steel, Light Duty Welded Stainless Steel

Light Duty Carbon SteelAll Aluminum Products

1. Alloy 6063-T6 per ASTM B-221 and QQ -A-200/9.2. Alloy 6061-T6 per ASTM B-221 and QQ -A-200/8 (by inquiry).

1. Alloy 6063-T6 per ASTM B-221 and QQ -A-200/9.

1. Grade 36 (1/4", 5/16", 3/8", 1/2" carbon steel).2. Other (by inquiry).

1. ASTM A-1011 (1/8", 3/16", 1/4" carbon steel).2. Grade 36 (1/4" carbon steel) by inquiry.3. Type 304 per ASTM A-666 (1/8" and 3/16" stainless steel).4. Other (by inquiry).

1. Alloy 6063-T6 per ASTM B-221 and QQ -A-200/9.

ANSI /NAAMMMBG 531

AASHTO (American As-sociation of State Highway & Transportation Officials) Standard Specification For

Highway Bridges

ANSI/NAAMMMBG 532

ANSI /NAAMMMBG 531

ANSI /NAAMMMBG 531

MIL-G-18014(Ships)

MIL-G-18015(Ships)

MIL-G-18014(Ships)

NA

1. Mill Finish2. Clear Anodized AA-A31 (30 min.) or AA-A41 (60 min.) (by inquiry).3. Other (by inquiry).

1. Mill Finish2. Other (by inquiry).

1. One coat manufacturer’s standard black paint. This is not a permanent finish system, but is intended to protect the grating in transit only because it will chip.2. Galvanizing per ASTM A-123/A-385.

1. One coat manufacturer’s standard black paint. This is not a permanent finish system, but is intended to protect the grating in transit only because it will chip.2. Galvanizing per ASTM A-123/A-385.

1. TGIC Polyester Systems, a permanent durable finish that resists impact, humidity and salt spray which increases material longevity.

SPECIFICATIONS

PRODUCT MATERIAL FEDERAL MILITARY FINISH

OGi is a member in good standing with the National

Association of Architectural Metal Manufacturers.

All aluminum and steel grating manufactured and

fabricated by Ohio Gratings is done so in accordance

with the NAAMM Metal Bar Grating Manual,

current edition, which is an approved standard of the

American National Standards Institute and designated

as ANSI/NAAMM MBG 531 (steel, stainless steel, and

aluminum grating and stair treads) and ANSI/NAAMM

MBG 532 (structural carbon steel and stainless steel).

The following table outlines the material, Federal,

Military and finishing specifications routinely used

by the grating industry. In the absence of customer

furnished specifications, the following will apply:

*Effective March 10, 1989, the Naval Facilities Engineering Command adopted the NAAMM Metal Bar Grating Manual for Department of Defense use, replacing Federal Spec RR-G-661 as the specification for carbon steel and aluminum metal bar grating flooring, except for naval vessels.

Since the aluminum oxide coating of aluminum bar is

relatively inert chemically, and is self-repairing when

damaged in the presence of oxygen, aluminum bar

grating possesses a high degree of corrosion resistance

in the mill finished condition, and is typically

specified without additional coatings or treatment.

A Word About Finishing Grating

100 www.OhiOgRaTings.cOm

Page 101: Light Duty Steel Grating & Aluminum Grating

ADA GUIDELINES

On July 26, 1991 the Architectural and Transportation

Barriers Compliance Board (Access Board) published

the Americans with Disabilities Act Accessibility Guide-

lines (ADAAG). The ADA establishes accessibility re-

quirements for new construction and alterations of State

and local government facilities, and places of public

accommodation and commercial facilities. As updated

in the November 16, 1999 ADAAG Notice of Proposed

Rule making, section 302.3 states that “openings in floor

or ground surfaces shall allow passage of a sphere not

more than 1/2 inch (13 mm) diameter. Elongated

openings shall be placed so that the long dimension is

perpendicular to the dominant direction of travel.”

ADA Accessibility Guidelines

Ohio Gratings manufactures Aluminum, Light Duty

Carbon and Stainless Steel, and Heavy Duty Carbon

Steel grating products which conform with the spacing

requirements of the ADA Accessibility Guidelines for

Buildings and Facilities. The specification and use of this

family of GRATER AccESS® products will ensure

that your project is both pedestrian friendly and vehicle

safe. Since these Accessibility Guidelines are subject to

change, please contact the factory for up-to-date informa-

tion regarding the use of grating in ADA applications.

Note: Bar grating has historically been an industrial foot walk product,

intended for use in catwalks, platforms, stairways, and roadways

(Heavy Duty only), and is designed to be installed in a fastened

condition. This grating is standardly subject to manufacturing and

fabrication tolerances as dictated by the ANSI/NAAMM Metal Bar Grat-

ing Manual. While these tolerances and the various finishes

available are suitable for most industrial applications, they may not be

appropriate for some commercial or architectural uses. Please contact

the factory for further specification assistance.

ADA Note: As of the publication date of this catalog,

Ohio Gratings’ products having a 1/2" maximum

opening conform with the Americans with Disabilities Act

Accessibility Guidelines (ADAAG), issued in July 1991,

and the ADAAG Notice of Proposed Rule making issued

on November 16, 1999, for grating when installed with the

elongated opening perpendicular to the dominant direction of travel.

TOLL FREE: 1-800-321-9800 101

Page 102: Light Duty Steel Grating & Aluminum Grating

NOMENCLATURE & VOCABULARY

* Equal end dimensions must be specified

ClearSpan

SPACING (c. to c.)

CROSSBAR

CROSS BAR

BEARING BARBAND BAR

BEARING BARSPACING(c. to c.)

PA

NE

LW

IDTH

CLEARANCEPANEL SPAN

CLEARANCE

END DIMENSION*

When bearing bars run parallel with the long dimension of the trench, intermediate supports spanning across the trench may be required (support omitted for clarity).

PANEL WIDTH

PA

NE

LS

PA

N

This catalog uses a form of the NAAMM

alpha-numeric designation for bar spacing

and manufacturing identification. The first

number signifies center-to-center bearing bar

spacing in 1/16ths of an inch*. A letter

designates method of manufacture. The last

number details center-to-center cross bar

spacing in whole inches (usually 4" or 2"),

or rivet spacing (usually 3-1/2", 5" or 7").

SG- Swaged Rectangular Bar

SGF- Swaged Flush

SGI- Swaged I-Bar

SGLi- Swaged Lite Bar

R- Riveted (Steel)

AR- Riveted Aluminum

LG- Louver

W- Welded Steel

DT- Dove Tail

ADT- Dove Tail (Aluminum)

SGCS- Swaged Carbon Steel

SGSS- Swaged Stainless Steel

WH- Wheels n’ Heels®

PL- MBG PressLock

19-W-4 Bearing Bars 19/16" (or 1-3/16") c.c. – Welded Steel Construction – Cross Bars 4" c.c.

15-SGI-2 Bearing Bars 15/16" c.c. – Swaged I-Bar – Cross Bars 2" c.c.

Bearing Bars 38/16" c.c.(2-3/8" c.c.)Bearing Bars 30/16" c.c.(1-7/8" c.c.)Bearing Bars 22/16" c.c.(1-3/8" c.c.)Bearing Bars 11/16" c.c.Bearing Bars 7/16" c.c.Bearing Bars 18/16" c.c. face-to-face (1-1/8")*Bearing Bars 37/16" c.c. face-to-face (2-5/16")*Bearing Bars 12/16" c.c. face-to-face (3/4")*

38-W-4 (or 2)30-W-4 (or 2)22-W-4 (or 2)11-SG-4 (or 2)7-SG-4 (or 2)18-R-7 (or 3-1/2)37-R-512-R-7 (or 3-1/2)

Methods of manufacturing and their letter designations used in this catalog:

Methods of name identification used in this catalog

For Example:

Other Bearing Bar spacings commonly used throughout the industry are designated this way:

102 www.OhiOgRaTings.cOm

Page 103: Light Duty Steel Grating & Aluminum Grating

PRESSURE LOCKED GRATING

Dove Tail Slot

The most common method of manufacturing aluminum bar grating is through a process known as pressure locking.

Pressure locked grating as defined by the NAAMM Metal Bar Grating Manual is grating in which “bearing bars are

locked in position by cross bar deformation instead of riveting or welding.” Ohio Gratings manufactures both traditional,

dove tail pressure locked grating, and swaged grating. Both manufacturing processes are used to manufacture, not only

aluminum grating, but also carbon steel grating (see pages 43). Additionally, the swaging process is used to produce

stainless steel grating (see page 61). Each method of manufacture is further described below.

Pressure Locking

Aluminum Flush Top grating from Ohio Gratings combines the sure

lock reliability of swage-locked grating with the cosmetic appeal and

added walking surface of traditional pressure locked grating. Best of all,

by taking advantage of the swage-lock manufacturing process, Alumi-

num Flush Top grating offers a cost savings over traditional pressure

locked grating while at the same time allowing banding to be an option

rather than a requirement. Field cutting is also possible.

These two grating designs utilize a process by which 1/4" or 5/16"

square cross bars are assembled through punched, diamond shaped

holes in the bearing bars, and then secured by swaging to prevent

turning, twisting, or loosening. Available with either rectangular or

I-shaped bearing bar sections, this manufacturing process offers:

1. The economy of cutting individual pieces from panels.

2. Enables field alteration of grating panels.

3. Allows banding as an option rather than as a requirement.

This first generation pressure locked design involves pressing the cross

bars into the main bars under hydraulic pressure, forcing 1/16" of cross

bar material laterally into “dove tail” slots in the main bars. Each piece

is then generally end banded to provide panel stability, and outside

bearing bars and cross bars are usually tack welded to ensure integrity.

Pieces may be made individually to size, or may be shop cut from

panels. Field alteration of this style of grating is typically more difficult

than field fabrication of swaged grating, and is generally discouraged.

Aluminum Flush Top Grating

Aluminum Rectangular / I-Bar Grating

Dove Tail Pressure Locked Grating

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Page 104: Light Duty Steel Grating & Aluminum Grating

CUSTOM FABRICATION

All types of fabrication typically associated with the

grating industry are performed by experienced and expert

craftsmen at Ohio Gratings. Services available include

straight and circular cutting and banding, fabrication of

radially cut grating panels, toe plate attachment, grating

with checker plate, heavy duty grating with cross bars top

and bottom, serrated heavy duty bearing bars and cross

bars, egg-crate construction, vault grating, grating with

hinges and locks, and heavy duty grating with spacer bars

to form an extremely close mesh (see Wheels n' Heels®

Heavy Duty Steel Grating).

Typical Panel Layout

10'- 1-1/2" REF.1/4"

6-1/4"

TOE PLATE

6-1/4"

1-3/

4"

1-3/4"13-1/4" 35-13/16" 35-13/16" 35-13/16"

2" 1/4" NOM.

102

101R

101L

16" DIA.

BAND

103

4'-

3-3

/4"

2'-

1-3/

4"

Typical Structural Layout

10'- 0"

3'- 0"

2'-

0"

C8

x 11

.5

W8 x 13 W8 x 31

4'-

0"

W8

x 13

14" DIA.PIPE

SP

AN

C8 x 11.5

Drawings & TemplatesThe majority of fabrication performed by Ohio Gratings is

done in accordance with grating drawings prepared by the

Engineering Department. These grating erection drawings

are generally produced from the structural drawings, or

grating outline drawings, as supplied by the customer.

Each grating panel is tagged with a mark number which

corresponds to a mark number on the drawing. This

marking system allows grating panels to be identified

during the fabrication process, and, when used in con-

junction with the grating drawing, facilitates the correct

placement of grating panels during erection.

While some grating companies work from floor layouts,

Ohio Gratings has chosen to employ personnel thoroughly

versed in the trigonometry of grating design, and shop

employees who are experts at blueprint reading. This

combination has been found to be the most efficient ap-

proach to drawing preparation, customer drawing approv-

al, and shop fabrication.

Occasionally, extremely intricate grating areas require

that fabrication be accomplished from a template used to

supplement the grating drawing. Templates supplied by

the customer are usually made from cardboard or plas-

tic. In addition to grating configuration, templates must

indicate top and bottom sides, and whether or not they

represent the size of the opening or the size of the grating.

Grating can be fabricated from templates for a nominal

charge, over and above the standard fabrication charge.

Shown above is an example of a customer supplied structural drawing (top sketch) and the corresponding grating layout draw-ing as furnished by Ohio Gratings (bottom sketch).

Ohio Gratings stocks and fabricates most major types of fiberglass grating. Molded fiberglass, both square mesh and rectangular mesh, as well as pultruded grating is available in panel form, or cut-to-length and fabricated per customer specifications. Ohio Gratings also has the ability to supply FRP platforms, ladders and handrail. For more information regarding OGI’s FRP fabrication capabilities, please contact the factory.

FIBERGLASS FABRICATION

Please contact the factory regarding the electronic transfer of drawings via the Internet.

104 www.OhiOgRaTings.cOm

Page 105: Light Duty Steel Grating & Aluminum Grating

CUSTOM FABRICATION

For those flooring areas requiring the solid surface of

plate, and the structural strength and removability of

grating, assemblies combining checkered or smooth plate

with aluminum, light duty steel, or heavy duty steel can be

furnished. Unless otherwise specified, 3/16" welds, one

inch long on 12" centers in each direction are used to join

grating and plate. Due to the rolled in stresses inherent in

plate, and the subsequent stress release and warping which

can accompany galvanizing, the following limitations

apply to steel grating/checker plate assemblies:

In order to achieve maximum skid resistance for wheel

traffic, Ohio Gratings manufactures heavy duty welded

steel grating with serrated rectangular bearing bars and

cross bars. The rectangular cross bar design is especially

suited to this application, providing a skid free surface,

while at the same time offering lateral stability which is

superior to the round cross rod design most common to

the industry. Serrated bearing bars range from 1/4" thru

1/2" thick, while serrated cross bars are available in 1/4"

and 3/8" thickness.

Grating/Plate Combinations

Shown above is a steel grating/solid plate assembly coated with a slip

resistant, anti-skid surface. For applications requiring the light weight or

corrosion resistance of an aluminum grating / checkerplate combination,

unpunched plank (shown above with a slip resistant surface) offers an

economical alternative.

1. Light Duty Steel Grating and Plate combinations will be

furnished in the mill finished or painted black conditions

only. Deviation from this policy will be at customer risk,

i.e., flatness tolerances will not be guaranteed for

galvanized material.

2. In addition to the painted or mill finished condition, Heavy

Duty Grating/Plate assemblies having bearing bars 2" x

3/8" or larger can be provided with a galvanized finish.

3. Steel Grating/Plate combinations will be installed with the

plate on the BOTTOM of the grating. When installed with

the plate facing up, the cross bars will be on the bottom of

the grating. This will apply to steel only (not aluminum).

4. Galvanized Steel Grating/Plate will be fabricated with 1/2"

diameter handling/drain hole in one corner of the plate.

Serrated Rectangular Bearing Bars & Cross Bars

Egg-Crate Construction

Occasionally requirements call for the cross bars to be

larger than standard, or in some cases, equal in size to the

bearing bars. This condition may necessitate the notching

of both the bearing bar and the cross bar resulting in a type

of construction known as “egg-crate”. Unless otherwise

specified, each internal intersection is welded at two of

the four corners, while the outside intersection is welded

at one of the two corners. Depth of weld can vary depend-

ing upon the depth of the grating and the opening between

bars. In general, egg-crate construction is limited to bars

from 2" to 6" in depth and ranging from 1/4"

up to 1" in thickness, with

a minimum clear

opening ranging

from 2" to 4",

depending upon bar

size. The maximum

panel size is typically

50 - 60 SF per piece.

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Page 106: Light Duty Steel Grating & Aluminum Grating

CUSTOM FABRICATION

For those areas requiring added resistance to lateral

forces, Ohio Gratings manufactures heavy duty welded

steel grating with cross bars on the bottom, in addition

to the standard cross bars which are located on the top.

Bottom cross bars can be provided in rectangular or

round design, and can be positioned as close together as

2" on center. Bottom cross bars are

especially helpful in

resisting the

lateral impact

of accelerating

and decelerating

wheel loads.

Cross Bars Top & Bottom

Slip Resistant SurfaceAll Ohio Gratings’ products are available with a slip resistant, metallic coating for maximum traction. This coating may be in the form of the plasma stream deposition of aluminum-on- aluminum or steel-on-steel, or may be in the form of a CNC laser deposition process. For the most suitable coating for your application, please contact the factory.

* Toe Plate

Notched Grating

* Inverted Angle

Since grating is typi-

cally used to provide

multiple level flooring,

quite often, grating

hatches are needed to

facilitate access from

one level to another.

Ohio Gratings has years

of experience in fabricating grating panels with hinges

and lift handles, and with locking devices for security

purposes. Numerous typical details have been

developed, and are on file.

Notching/WeldingNotching is somewhat common in the industry, how-

ever, not recommended under certain conditions. Please

consult factory for recommendations.

Hinges, Locks & Lift Handles

* Grating which is welded to an inverted angle or toe plate, and supported by the weld rather than by a bearing surface, is not recommended and should never be specified.

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Page 107: Light Duty Steel Grating & Aluminum Grating

STANDARD INSTALLATION CLEARANCES

specified cutout – 4" x 6"

actualcutout – 5-3/4" x 6"

(bearing bar spacing – 1-3/16" )

Panel length Panel length

Pan

el w

idth

Pan

el w

idth

3/8"

1/4" clearance between ends of cross bars on rectangular grating or rivet heads on riveted grating (3/8" for heavy duty grating).

1/4"1/4"

Bearing bars

Bearing bars

Bearing bars

Bearing bars

Bearing bars

Bearing bars

Bearing bars

Bearing bars

1/2"

min. clearanceequal to supportangle fillet radius

*This dimension may vary due to bearing bar spacing but will not exceed bearing bar spacing.

* *

Cutouts for circular obstructions are recommended to

be at least 2" larger in diameter than the obstruction. It

is further recommended that cutouts for all piping 4"

or less be made in the field.

• Gratings must be installed with cross bars on top side.

• Notching of bearing bars at supports to maintain proper

elevation is generally not recommended. If notching is required

for installation, manufacturer should be consulted.

• Metal should always be used for all grating supports.

• A minimum of 1" bearing shall be provided for Aluminum and

Light Duty Steel Grating. For Heavy Duty Steel Grating, 1"

minimum bearing shall be provided for bearing bar depths up

to 2-1/4", and 2" minimum bearing shall be provided for depths

of 2-1/2" and over. This bearing surface does not include the

support angle fillet radius noted above.

Banding may have less depth than bearing bars

for trench grating to allow drainage. Full depth

banding will be provided unless otherwise specified.

Clearances shown are recommended, but may vary in

accordance with dimensional tolerances.

Heavy duty grating should be designed to have structural

support under each bearing bar at cutouts.

As shown in the drawing below, all rectangular cutouts

are made to the next bearing bar beyond the penetration

with a clearance not to exceed bearing bar spacing.

General Recommendations for Grating Installation

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Page 108: Light Duty Steel Grating & Aluminum Grating

GRATING TOLERANCES

Overall Dimensions and Squareness

Bearing Bar LeanCross Bar Lean

Cross Bar Location

Cross Bar Alignment and Spacing

Cross bar shall

not vary more

than 1/8" in 12"

in either direction

from perpendicular

alignment with

bearing bars.

D and D' are

overall diagonal

dimensions.

W an W' are

overall lengths

of cross bars at

opposite ends of

panel.

Width (W) overall ± 1/4"

1/8" 1/8"

1/8"o.c. ± 1/32"

SP

AN

± 1

/4"

W'= W ± 1/4"

D´ =

D ±

1/4

"

D

± 1/4" c-c end cross bars in 5'-0" length

12"

1/16"

Cross bars

Bearing bars

12"

1-1/4"

12"

2-1/2"

Transverse Bow

Bearing bars 1/8" per foot of width

1/8" per foot of width

(Before fastening to supports)

1/200" of span Bearing bars

Light Duty Steel Grating & Aluminum Grating

Longitudinal Bow

108 www.OhiOgRaTings.cOm

Page 109: Light Duty Steel Grating & Aluminum Grating

GRATING TOLERANCES

D and D' are

overall diagonal

dimensions. W an

W' are overall

lengths of cross

bars at opposite

ends of panel.

Width (W) overall ± 1/4"

1/8" 1/8"o.c. ± 1/16"

SP

AN

± 1

/4"

W'= W ± 1/4"

D´ =

D ±

3/8

"

D

(Measured on top of grating)

Cross bar shall

not vary more than

1/8" in 12" in either

direction from

perpendicular

alignment with

bearing bars.

1/8"

± 1/4" c-c end cross bars in 5'-0" length

12"

1/8"

Cross bars Bearing bars

12"

1-1/4"

12"

2-1/2"

1/240" of span Bearing bars Bearing bars 1/8" per foot of width

1/8" per foot of width

Heavy Duty Steel Grating

Overall Dimensions and SquarenessCross Bar Alignment and Spacing

Cross Bar Location

Cross Bar LeanBearing Bar Lean

Transverse Bow(Before fastening to supports)

Longitudinal Bow(Before fastening to supports)

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Page 110: Light Duty Steel Grating & Aluminum Grating

WELDING STANDARDS

The welding standards shown here apply to those gratings and treads having a clear opening of not less than 5/8"

between bearing bars and those galvanized as per ASTM A-123.

Toe Plates

Banding

Stair Treads

Depth of toe plate to be in multiples of 1/2" with a maximum of a + d.

Toe plate

Bearing bars

t = Bearing bar thickness

Bearing bars

a t

d = Bearing bar depth

1/8" 1" @ 12"

d

Bearing bars

*toe plate

At each cross bar

1/8"

At each bearing bar forload-carrying toe plates t 3/4"

5" ± o.c. for trim toe plate

Toe plate

1/8" 3/4"

*Example shown occurs at a diagonal or circular cutout.

At each cross bar 1/8"

*Example shown occurs at a diagonal or circular cutout. Since the outside bearing bar becomes the edge bar of a panel width, side bands are never specified.

Full depth banding will be provided unless otherwise specified.

Bearing bars Bearing barsBand

Band*1/8" 3/4"

5" ± o.c. for trim bands and trench gratings

At each bearing bar forload-carrying bandst d

1/8" (3)

Carrier plate Carrier angle

1" (25) at mid-span*

When carrier plates are used, the bearing bars and the nosing in

the front five inches shall be welded to the carrier plate as shown.

On treads over 9-3/4" (248) wide, weld end of center bar also.

*Treads spanning 4' (1.2 m) or more shall have two welds, located at the third points.

Light Duty Steel Grating & Aluminum Grating

110 www.OhiOgRaTings.cOm

1/8" (3) 5" (127)

1/8" (3)

1/8" (3)

1/8" (3)

1/8" (3)

1/8" (3)

1" (25) at mid-span*1/8" (3)

Page 111: Light Duty Steel Grating & Aluminum Grating

WELDING STANDARDS

Heavy Duty Steel Grating

Rectangular Cross Bar

Round Cross Bar

Egg-Crate

Toe Plates

Banding

One sideat every

intersection3/16" d

t = Thickness of cross bard = Depth of cross bar

At each outside bearing bar cross bar intersection

dt

At everyintersection

t = Thickness of bearing bard = Diameter of cross rod

dt dt

At each outside bearing bar cross rodintersection

Two sides at every intersection1/4" d

d = Depth of bearing bars

Depth of toe plate to be in multiples of 1/2˝with a maximum of a + d.

Toe plate

a 3/16" 1" @ 12" t

d

*Toe plate

At each cross bar

3/16"

Bearing bars Bearing bars Bearing bars

Toe plate

t = Bearing bar thickness d = Bearing bar depth

*Example shown occurs at a diagonal or circular cutout.

3/16" 3/4"5" ± o.c.

Minimum thickness = 1/4" For standard banding, band bar is same depth as bearing bars.

For depth less than 2-1/2" weld one side at top. For depth 2-1/2" or greater, weld one side at top, opposite side at bottom; or weld exceeding one-half depth on one side only.

At each bearing bar for load-carrying bands

Bearing barsBearing bars

Band*

Band

At each cross bar 3/16" 3/16" 3/4"

5" ± o.c.

dt

The welding standards shown here apply to those gratings and treads having a clear opening of not less than 5/8"

between bearing bars and those galvanized as per ASTM A-123.

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Page 112: Light Duty Steel Grating & Aluminum Grating

GLOSSARY

ANCHOR A device by which grating is attached to its supports.

BAND A flat bar welded to the end of a grating panel, or along the line of a cutout, and extending neither above nor below the bearing bars.

Load-Carrying Band: A band used in a cutout to transfer the load from unsupported bearing bars in the cutout to the supported bearing bars.

Trim Band: A band which carries no load, but is used chiefly to improve appearance.

BEARING BARS Load-carrying bars made from steel strip or slit sheet or from rolled or extruded aluminum and extending in the direction of the grating span.

BEARING BAR CENTERS The distance center to center of the bearing bars.

CARRIERS Flats or angles which are welded to the grating panel and nosing of a stair tread and are bolted to a stair stringer to support the tread.

CLEAR OPENING The distance between faces of bearing bars in a rectangular grating, or between a bent connecting bar and a bearing bar in a riveted grating.

CROSS BARS The connecting bars, made from steel strip, slit sheet, or rolled bars, or from rolled or extruded aluminum, which extend across the bearing bars, usually perpendicular to them. They may be bent into a corrugated or sinuous pattern and, where they intersect the bearing bars, are welded, forged or mechanically locked to them.

CROSS BAR CENTERS The distance center to center of the cross bars.

CURVED CUT A cutout following a curved pattern.

CUTOUT An area of grating removed to clear an obstruction or to permit pipes, ducts, columns, etc. to pass through the grating.

ELECTRO-FORGED A process combining hydraulic pressure and heat fusion to forge bearing bars and cross bars into a panel grid.

END DIMENSION The distance from an end of grating to center of first cross rod (except welded Heavy Duty, where distance is from edge of grating to back of first cross rod).

FILLER BAR A bar welded between two support bearing bars to close the spacing.

FINISH The coating, usually painted or galvanized which is applied to the grating.

FLUSH TOP GRATING A type of pressure-locked grating in which the cross bars and bearing bars are in the same plane relative to the top surface of the grating.

GRATING An open grid assembly of metal bars, in which the bearing bars, running in one direction, are spaced by rigid attachment to cross bars running perpendicular to them or by bent connecting bars extending between them.

HINGED PANELS Grating panels which are hinged to their supports or to other grating parts.

I-BAR An extruded aluminum bearing bar having a cross sectional shape resembling the letter “I”.

INTERLOCKING GRATING Plank Grating – Snap Lock Plank grating with male and female sides that lock together.

112 www.OhiOgRaTings.cOm

Page 113: Light Duty Steel Grating & Aluminum Grating

GLOSSARY

INTERSECTION AREA The point where the bearing bar and cross bar intersect or cross. In heavy duty grating with a rectangular cross bar; an intersection has four (4) sides.

LENGTH The dimension of a grating panel measured parallel to the bearing bars. Also referred to as span.

MARKING (Mark Number) Used to identify each unique piece.

NOSING A special L-section member serving as the front or leading edge of a stair tread, or of grating at the head of a stair.

NOTCHED BAR A cut out in the bearing bar. A burn out or punch.

PRESSURE-LOCKED GRATING Pressure-locked means bearing bars are locked in posi-tion by cross bar deformation instead of riveting or welding.

Several proven methods are:

• Expansion of an extruded or drawn tubular cross bar

• Extruded cross bar deformed or swaged between bearing bars

• Press assembly of rectangular cross bars into slotted bearing bars.

RADIALLY CUT GRATING Rectangular grating which is cut into panels shaped as annular segments, for use in circular or annular areas.

RETICULINE BAR A sinuously bent connecting bar extending between two adjacent bearing bars, alternately contacting and being riveted to each.

RIVET CENTERS The distance center to center of rivets along one bearing bar.

RIVETED GRATING Grating composed of straight bearing bars and bent connecting bars, which are joined, at their contact points, by riveting.

SERRATED GRATING Grating which has the top surfaces of the bearing bars or cross bars, or both, notched.

SKEW CUT A fabricated diagonal cut.

SPAN OF GRATING The distance between points of grating support, or the direction of this dimension. Also referred to as length.

STRAIGHT CUT That portion of the cut edge or cutout of a grating which follows a straight line.

SWAGING A method of altering the cross-sectional shape of a metal bar by pressure applied through dies.

TOE PLATE A flat bar attached against the outer edge of a grating or rear edge of a tread, and projecting above the top surface of grating or tread to form a lip or curb.

TREAD A panel of grating having carriers and nosing attached by welding, and designed specifically to serve as a stair tread.

WELDED GRATING Grating in which the bearing bars and cross bars are joined at all of their intersections by either a resistance weld or conventional hand welding.

WIDTH The overall dimension of a grating panel, measured perpendicular to the bearing bars, and in the same direction as the cross bars.

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Page 114: Light Duty Steel Grating & Aluminum Grating

ORDERING INFORMATION

GRATING

1. Description: a. Aluminum: – Aluminum Flush Top SGF Series – Aluminum Rectangular Bar SG Series – Aluminum I-Bar SGI Series – Aluminum Lite Bar – Aluminum Dove Tail ADT Series – Aluminum Riveted AR Series – Aluminum Plank Series

b. Heavy Duty Steel: – Heavy Duty Welded Steel W Series – Heavy Duty Welded Steel WH Series – Heavy Duty Riveted Steel R Series

c. Light Duty Steel: – Welded Carbon Steel W Series – Dove Tail Carbon Steel DT Series – Swaged Carbon Steel SGCS Series – Swaged Stainless Steel SGSS Series – Riveted Carbon Steel R Series

2. Size and Type: (Bar grating) a. Bearing bar size b. Bearing bar spacing, center-to-center (face-to-face for riveted grating) c. Cross bar or rivet spacing, center-to-center

3. Surface: a. Plain b. Serrated c. Striated (I-Bar) d. Slip Resistant Surface

4. Size & Punch/Pattern: (Aluminum Plank grating) a. Plank size and type b. Unpunched c. Rectangular Punched – Upset Pattern (OGI) – Upset Pattern (WACO) – Plain Pattern d. Square Punched – Upset Pattern – Plain Pattern e. Round Punched – 1-3/16" Diameter In-Line Pattern – 1" Diameter Staggered Pattern f. ADA Diagonal Pattern

5. A Drawing Showing: (if layout is complicated) a. Area to be covered b. Span (direction of bearing bars) c. Method of support d. All critical dimensions e. Banding or toe plate

6. Type of Anchorage: a. Grating clamp b. Plank clip c. Saddle clip d. Anchor block e. Countersunk land (aluminum only) f. Tack weld g. Z clip h. Plank lug

7. Finish: a. Aluminum: – Mill Finish – Cleaned & Etched – A-31 1/2 hour Clear Anodizing – A-41 1 hour Clear Anodizing

b. Carbon Steel: – Mill Finish – Manufacturer’s Standard Black Paint – Galvanized

c. Stainless Steel: – Mill Finish – Sandblast (used to help minimize the discoloration caused by welding Heavy Duty Stainless Steel grating)

STAIR TREADS

1. Description: See Grating, Item 1

2. Size and Type: (Bar grating) See Grating, Item 2

3. Surface: See Grating, Item 3

4. Size and Punch/Pattern: (Aluminum Plank grating): a. See Grating, Item 4 b. Type “F”

5. Type of Nosing: a. Checker plate – standard for carbon steel treads b. Cast aluminum – an abrasive nosing available on aluminum or carbon steel c. Grooved – an extruded aluminum nosing standard on aluminum treads d. Slip-Not – a special nose for aluminum or carbon steel treads by request e. Stainless Steel

6. Dimensions: a. Width of tread, including nosing b. Span (length of bearing bars) c. End plate dimensions “A” and “B” (see page 35)

7. Number of Treads:

8. Finish: See Grating, Item 7

ALUMINUM GRATING FRAMES

1. Frame Size: (corresponds with grating size)

2. Description: a. Stock lengths b. A detailed drawing or accurate measurements for fabricated frames

3. Supplementary anchor straps & spacing, if required:

4. Finish: a. Mill Finish b. Powder Coated

5. Nail Holes and Location:, if required

Note: Grating should always be held down by some positive means. (see page 98)

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Page 115: Light Duty Steel Grating & Aluminum Grating

Welded carbon heavy duty steel grating is the most popular choice where high strength is the primary grating requirement. Another option that meets

ADA standards isWheels n’ Heels®...

The main bars are slotted and assembled with cross bars which are welded with one fillet weld at every joint. Stainless steel can also be provided for those high corrosive applications. This product meets the demanding vehicle loading requirements

of AASHTO and is geared to handle heavy rolling loads. Slip resistant surfaces are available.

The typical markets for heavy duty steel grating include: ramps, docks, industrial flooring, industrial cover trenches, airfield ramps & trenches, airplane landing mats, machinery support trenches, bridge decking, bridge sidewalks, bridge trenches and many more applications.

Ohio Gratings offers a wide variety of light duty steel grating styles including electro forge welded,

dove tail pressure locked, riveted and swaged...

Electro forge welded grating is the more traditional industrial product while dove tail pressure locked, riveted and swaged offer smoother lines and a more pleasing appearance than the typical welded grating. These products appeal to the architectural market and

offer a different look that can be used not only for industrial applications but also commercial applications where a higher profile product might be desired. The dove tail and swaged products are also part of our Grater Access® line of products conforming to ADA standards.

INDUSTRIALG R A T I N G S O L U T I O N S

Aluminum plank is a very versatile product. It is available unpunched or in a variety of punch patterns. Slip resistant surfaces are also available. Aluminum plank is ideal for multiple industrial applications, everything from wastewater treatment plants to ADA compliant walkways (shown right) and platforms.

Aluminum Plank

Light Duty Steel Grating

Heavy Duty Steel Grating

Grosse Ile Bridge, MI - Aluminum Plank Walkway

Grosse Ile Bridge in Michigan - Heavy Duty Riveted

2 www.ohiogratings.com

ArchitecturalM e t A l S o l u t I o n S

Ask about our Architectural Catalog!

w w w . o h i o g r a t i n g s . c o m

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Printed 8/12

oHIo GRAtInGS, InC .oHIo GRAtInGS, InC